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    Lactose
CAS: 63-42-3 | C12H22O11
2D Structure
3D Structure
Loading 3D structure...
Basic Information
                            CAS Registry Number:
                            63-42-3
                        
                        
                            Molecular Formula:
                            C12H22O11
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                            Molecular Weight:
                            342.2970000000001 g/mol
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                    Names and Synonyms:
                                    Lactose
                                    
                                
                                
                                
                                    Leprino 100
                                    
                                
                                
                                
                                    Hilmar 5030
                                    
                                
                                
                                
                                    Respitose SV 001
                                    
                                
                                
                                
                                    Lactopure Refined Powder
                                    
                                
                                
                                
                                    Hilmar Fine Graind
                                    
                                
                                
                                
                                    Lactose DCL 21
                                    
                                
                                
                                
                                    Hilmar Extra Fine
                                    
                                
                                
                                
                                    DuraLacH
                                    
                                
                                
                                
                                    FlowLac
                                    
                                
                                
                                
                                    GranuLac
                                    
                                
                                
                                
                                    America Grand Lactose
                                    
                                
                                
                                
                                    Tablettose 100
                                    
                                
                                
                                
                                    Inhalac 250
                                    
                                
                                
                                
                                    Lactose DCL 11
                                    
                                
                                
                                
                                    LE-PRO LAC 451
                                    
                                
                                
                                
                                    Respitose MC 001
                                    
                                
                                
                                
                                    Respitose SV 010
                                    
                                
                                
                                
                                    Dairylac 80
                                    
                                
                                
                                
                                    Inhalac 70
                                    
                                
                                
                                
                                    DCL 15
                                    
                                
                                
                                
                                    Respitose ML 006
                                    
                                
                                
                                
                                    SuperTab 11SD
                                    
                                
                                
                                
                                    PrenoLakt
                                    
                                
                                
                                
                                    Variolac 960
                                    
                                
                                
                                
                                    Lactohale 200
                                    
                                
                                
                                
                                    Lactohale 100
                                    
                                
                                
                                
                                    Granulac 140
                                    
                                
                                
                                
                                    Granulac 70
                                    
                                
                                
                                
                                    Respitose ML 001
                                    
                                
                                
                                
                                    SuperTab 21AN
                                    
                                
                                
                                
                                    Lactose Edible 90
                                    
                                
                                
                                
                                    Dilactose
                                    
                                
                                
                                
                                    Sorbolac 400
                                    
                                
                                
                                
                                    Lactohale 300
                                    
                                
                                
                                
                                    Respitose ML 003
                                    
                                
                                
                                
                                    Pharmatose DCL 15
                                    
                                
                                
                                
                                    Spherolac
                                    
                                
                                
                                
                                    Sachelac
                                    
                                
                                
                                
                                    Prismalac
                                    
                                
                                
                                
                                    Respitose SV 003
                                    
                                
                                
                                
                                    Granulac 140M
                                    
                                
                                
                                
                                    DCl 11
                                    
                                
                                
                                
                                    Sorbalac 400
                                    
                                
                                
                                
                                    Pharmatosa DCL 21
                                    
                                
                                
                                
                                    Super-Tab
                                    
                                
                                
                                
                                    Tablettose 80
                                    
                                
                                
                                
                                    Flowlac 100
                                    
                                
                                
                                
                                    Lactose anhydride
                                    
                                
                                
                                
                                    Tablettose 70
                                    
                                
                                
                                
                                    Nonpareil 107
                                    
                                
                                
                                
                                    Pharmatose 325M
                                    
                                
                                
                                
                                    Pharmatose 21
                                    
                                
                                
                                
                                    Fast-Flo Lactose
                                    
                                
                                
                                
                                    Lactose Fast-flo
                                    
                                
                                
                                
                                    Zeparox EP
                                    
                                
                                
                                
                                    AHL
                                    
                                
                                
                                
                                    Fast-flo
                                    
                                
                                
                                
                                    Tablettose
                                    
                                
                                
                                
                                    D-(+)-Lactose
                                    
                                
                                
                                
                                    Osmolactan
                                    
                                
                                
                                
                                    Galactinum
                                    
                                
                                
                                
                                    Aletobiose
                                    
                                
                                
                                
                                    Lactose anhydrous
                                    
                                
                                
                                
                                    (+)-Lactose
                                    
                                
                                
                                
                                    Lactin (carbohydrate)
                                    
                                
                                
                                
                                    Saccharum lactin
                                    
                                
                                
                                
                                    Milk sugar
                                    
                                
                                
                                
                                    Lactobiose
                                    
                                
                                
                                
                                    Lactin
                                    
                                
                                
                                
                                    4-O-β-D-Galactopyranosyl-D-glucose
                                    
                                
                                
                                
                                    Lactose
                                    
                                
                                
                                
                                    D-Glucose, 4-O-β-D-galactopyranosyl-
                                    
                                
                                
                            Identifiers:
SMILES:
O=C[C@H](O)[C@@H](O)[C@H](O[C@@H]1O[C@H](CO)[C@H](O)[C@H](O)[C@H]1O)[C@H](O)CO
                                
                            InChI:
InChI=1S/C12H22O11/c13-1-4(16)7(18)11(5(17)2-14)23-12-10(21)9(20)8(19)6(3-15)22-12/h1,4-12,14-21H,2-3H2/t4-,5+,6+,7+,8-,9-,10+,11+,12-/m0/s1
                                
                            Spectral Data
NMR, IR, and Mass spectral data
1H NMR
        13C NMR
    Predicting NMR spectra...
    
                10 ppm
                9
                8
                7
                6
                5
                4
                3
                2
                1
                0 ppm
            
            
            
            | Shift (ppm) | Multiplicity | Integration | Assignment | 
|---|
                200 ppm
                180
                160
                140
                120
                100
                80
                60
                40
                20
                0 ppm
            
            
            
            | Shift (ppm) | DEPT | Assignment | 
|---|
Note: These NMR spectra are predicted computationally and may differ from experimental data. Predictions are based on chemical environment analysis.
All Properties
Comprehensive physical and chemical properties
| Category | Property | Value | Source | 
|---|---|---|---|
| Physical Properties | molecular_mass | 342.30 g/mol | Legacy Database | 
| density | 1.52 g/cm³ | Legacy Database | |
| wikipedia_url | https://en.wikipedia.org/wiki/Lactose | Legacy Database | |
| cas-canonical-smile | O=CC(O)C(O)C(OC1OC(CO)C(O)C(O)C1O)C(O)CO | Legacy Database | |
| cas-density | 1.52 g/cm3 | Legacy Database | |
| cas-inchi | InChI=1S/C12H22O11/c13-1-4(16)7(18)11(5(17)2-14)23-12-10(21)9(20)8(19)6(3-15)22-12/h1,4-12,14-21H,2-3H2/t4-,5+,6+,7+,8-,9-,10+,11+,12-/m0/s1 | Legacy Database | |
| cas-inchi-key | InChIKey=DKXNBNKWCZZMJT-JVCRWLNRSA-N | Legacy Database | |
| cas-melting-point | 201-202 °C | Legacy Database | |
| cas-name | (+)-Lactose | Legacy Database | |
| wikipedia-name | Lactose | Legacy Database | |
| LogP | -5.554599999999993 | RDKit | |
| Molecular | Molecular Weight | 342.2970000000001 g/mol | RDKit | 
| Exact | Exact Molecular Weight | 342.11621152399994 g/mol | RDKit | 
| Heavy | Heavy Atom Count | 23 count | RDKit | 
| Hydrogen | Hydrogen Bond Acceptors | 11 count | RDKit | 
| Hydrogen Bond Donors | 8 count | RDKit | |
| Rotatable | Rotatable Bonds | 8 count | RDKit | 
| Aromatic | Aromatic Ring Count | 0 count | RDKit | 
| Topological | Topological Polar Surface Area | 197.36999999999998 Ų | RDKit | 
| Molar | Molar Refractivity | 69.81040000000004 | RDKit |