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Methylene Blue

CAS: 61-73-4 | C16H18ClN3S

2D Structure

3D Structure

Loading 3D structure...

Basic Information

CAS Registry Number: 61-73-4
Molecular Formula: C16H18ClN3S
Molecular Weight: 319.861 g/mol

Names and Synonyms:

Methylene Blue
NSC 617593
Izit Crystal Dye
C.I. Solvent Blue 8
Solvent Blue 8
Urolene Blue
Basic Lake Blue
Methylene Blue MB
Duasyn Basic Blue IAD
Tetramethylthionine
External Blue 1
Sandocryl Blue BRL
Methylene blue polychrome
Methylene Blue HGG
Methylene Blue Iad
Methylene Blue BB
Basic Blue 9
Methylene blue
Methylene Blue B
Ext D and C Blue No. 1
Yamamoto Methylene Blue ZF
Yamamoto Methylene Blue B
Tetramethylthionine chloride
Swiss blue
Schultz 1038
Mitsui Methylene Blue
Methylthioninium chloride
Methylthionine chloride
Methylenium ceruleum
Methylene Blue ZX
Methylene Blue Zinc Free
Methylene Blue ZF
Methylene Blue SP
Methylene Blue SG
Methylene Blue NZ
Methylene Blue NF
Methylene Blue JFA
Methylene Blue GZ
Methylene Blue FZ
Methylene Blue chloride
Methylene Blue BZ
Methylene Blue BX
Methylene Blue BPC
Methylene Blue BP
Methylene Blue N
Methylene Blue BD
Methylene Blue 2BN
Methylene Blue 2B
Methylene Blue 2BF
Methylene Blue G
Methylene Blue A
Methylene Blue BBA
Methylene Blue 2BP
Methylene Blue D
Leather Pure Blue HB
Hidaco Methylene Blue Salt Free
Chromosmon
Calcozine Blue ZF
Aizen Methylene Blue BH
Aizen Methylene Blue FZ
C.I. 52015
Phenothiazin-5-ium, 3,7-bis(dimethylamino)-, chloride
C.I. Basic Blue 9
Phenothiazin-5-ium, 3,7-bis(dimethylamino)-, chloride (1:1)
Sigma A 4043
Methylthioninium chloride Proveblue
3,7-Bis(dimethylamino)-5λ4-phenothiazin-5-ylium chloride
Loffler's alkaline Methylene Blue
Methylene Blue solution alkaline according to Loeffler
TRx 0237
Basic Blue 2B
Proveblue
Suvus
Virostat
BIVN 401
Maxilon Blue SG

Identifiers:

SMILES:
CN(C)c1ccc2nc3ccc(N(C)C)cc3[s+]c2c1.[Cl-]
InChI:
InChI=1S/C16H18N3S.ClH/c1-18(2)11-5-7-13-15(9-11)20-16-10-12(19(3)4)6-8-14(16)17-13;/h5-10H,1-4H3;1H/q+1;/p-1

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.

External Resources

All Properties

Comprehensive physical and chemical properties

Physical Properties

Property Value Source
molecular_mass 319.86 g/mol Legacy Database
density 1.31 g/cm³ Legacy Database
cas-canonical-smile [Cl-].N=1C2=CC=C(C=C2[S+]=C3C=C(C=CC13)N(C)C)N(C)C None Legacy Database
cas-density 1.31 g/cm3 None Legacy Database
cas-inchi InChI=1S/C16H18N3S.ClH/c1-18(2)11-5-7-13-15(9-11)20-16-10-12(19(3)4)6-8-14(16)17-13;/h5-10H,1-4H3;1H/q+1;/p-1 None Legacy Database
cas-inchi-key InChIKey=CXKWCBBOMKCUKX-UHFFFAOYSA-M None Legacy Database
cas-melting-point 100-110 °C (decomp) None Legacy Database
cas-name Methylene blue None Legacy Database
LogP 0.8665999999999998 RDKit

Molecular

Property Value Source
Molecular Weight 319.861 g/mol RDKit

Exact

Property Value Source
Exact Molecular Weight 319.090996256 g/mol RDKit

Heavy

Property Value Source
Heavy Atom Count 21 count RDKit

Hydrogen

Property Value Source
Hydrogen Bond Acceptors 3 count RDKit
Hydrogen Bond Donors 0 count RDKit

Rotatable

Property Value Source
Rotatable Bonds 2 count RDKit

Aromatic

Property Value Source
Aromatic Ring Count 3 count RDKit

Topological

Property Value Source
Topological Polar Surface Area 19.370000000000005 Ų RDKit

Molar

Property Value Source
Molar Refractivity 90.18700000000004 RDKit

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