Naphthol Red

CAS: 2786-76-7 · C26H22N4O4

2D Structure

3D Structure

Loading 3D structure...

Basic Information

CAS Registry Number: 2786-76-7
Molecular Formula: C26H22N4O4
Molecular Mass: 454.49 g/mol

Identifiers

CAS Registry Number

2786-76-7

SMILES

CCOc1ccccc1N=C(O)c1cc2ccccc2c(N=Nc2ccc(C(N)=O)cc2)c1O

InChI Key

BGVYDWVAGZBEMJ-UHFFFAOYSA-N

InChI

InChI=1S/C26H22N4O4/c1-2-34-22-10-6-5-9-21(22)28-26(33)20-15-17-7-3-4-8-19(17)23(24(20)31)30-29-18-13-11-16(12-14-18)25(27)32/h3-15,31H,2H2,1H3,(H2,27,32)(H,28,33)

Names and Synonyms

Naphthol Red Common Name
2-Naphthalenecarboxamide, 4-[2-[4-(aminocarbonyl)phenyl]diazenyl]-N-(2-ethoxyphenyl)-3-hydroxy- Synonym
2-Naphtho-o-phenetidide, 4-[(p-carbamoylphenyl)azo]-3-hydroxy- Synonym
2-Naphthalenecarboxamide, 4-[[4-(aminocarbonyl)phenyl]azo]-N-(2-ethoxyphenyl)-3-hydroxy- Synonym
4-[2-[4-(Aminocarbonyl)phenyl]diazenyl]-N-(2-ethoxyphenyl)-3-hydroxy-2-naphthalenecarboxamide Synonym
C.I. Pigment Red 170 Synonym
Permanent Red F 5RK Synonym
Permanent Red F 3RK70 Synonym
C.I. 12475 Synonym
Pigment Red 170 Synonym
Graphtol Red NFB Synonym
Novoperm Red F 3RK70 Synonym
Novoperm Red F 3RK Synonym
Novoperm Red F 5RK Synonym
Naphthol AS Red Synonym
Suimei Fast Red ER Synonym
Sumitone Fast Red BRS Synonym
Seikafast Red 3891 Synonym
Sanyo Brilliant Carmine 7009 Synonym
Novoperm Red F 2RK70 Synonym
Seikafast Red 3820 Synonym
Fuji Fast Red 2200 Synonym
Novoperm Red F 2RK70N Synonym
L 1/8 Red F 3RK70 Synonym
Sunbrite Red 170 Synonym
Lysopac Red 7030C Synonym
Permanent Red F 3RK Synonym
Red F 5RK Synonym
Novoperm Red F 6RK Synonym
Naphtol Red B 7032C Synonym
Naphthol Red 3172 Synonym
Euderm Red Synonym
PR 170 Synonym
Hostaperm Red F 5RK Synonym
Eljon Red NRO Synonym
4708 Permanent Red F 5RK Synonym
Naphthol Red 5R Synonym
Red F 3RK70 Synonym
Permanent Red P-FK Synonym
Graphtol Red F 3RK70 Synonym
C.I. PR 170 Synonym
KP Plast P-Red 3RH Synonym
Naphthol Red 170 Synonym
Permanent Red BH 5RK Synonym
F 2RK Synonym
F 3RK70 Synonym
Graphtol Red F3RK 70-CN09 Synonym
Brilliant Carmine 7010 Synonym
JHR 1703L Synonym

All Properties

Comprehensive physical and chemical properties

Property	Value	Source
Molecular Mass	454.49 g/mol	CAS Common Chemistry
	454.4860000000002 g/mol	RDKit
	454.486 g/mol	RDKit
Density	1.40 g/cm³	CAS Common Chemistry
	1.395 g/cm3	CAS Common Chemistry
Wikipedia Url	https://en.wikipedia.org/wiki/Naphthol_Red	CAS Common Chemistry
Canonical SMILES	O=C(N)C1=CC=C(N=NC2=C(O)C(=CC=3C=CC=CC32)C(=O)NC=4C=CC=CC4OCC)C=C1	CAS Common Chemistry
InChI	InChI=1S/C26H22N4O4/c1-2-34-22-10-6-5-9-21(22)28-26(33)20-15-17-7-3-4-8-19(17)23(24(20)31)30-29-18-13-11-16(12-14-18)25(27)32/h3-15,31H,2H2,1H3,(H2,27,32)(H,28,33)	CAS Common Chemistry
InChI Key	InChIKey=BGVYDWVAGZBEMJ-UHFFFAOYSA-N	CAS Common Chemistry
Name	Pigment Red 170	CAS Common Chemistry
	Naphthol Red	CAS Common Chemistry
Heavy Atom Count	34	RDKit
Hydrogen Bond Acceptors	6	RDKit
Hydrogen Bond Donors	3	RDKit
Rotatable Bonds	7	RDKit
Aromatic Ring Count	4	RDKit
Topological Polar Surface Area	129.85999999999999 Å²	RDKit
	129.86 Å²	RDKit
LogP	6.094700000000004	RDKit
	6.0947	RDKit
Molar Refractivity	131.18550000000005 cm³/mol	RDKit
Ring Count	4	RDKit
Formal Charge	0	RDKit
Fraction Csp3	0.0769	RDKit
	0.08	chempirical lib
Exact Mass	454.16410518400005 g/mol	RDKit

Spectral Data

NMR, IR, and Mass spectral data

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

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MW = 454.49 g/mol; density = 1.400 g/mL. Edit any field — others recompute live.

Mass (g) Moles (mmol) Moles (mol) Volume (mL)