FD&C RED NO. 4

Details

Stereochemistry	ACHIRAL
Molecular Formula	C18H14N2O7S2.2Na
Molecular Weight	480.422
Optical Activity	NONE
Defined Stereocenters	0 / 0
E/Z Centers	1
Charge	0

SHOW SMILES / InChI

Structure Search

SMILES

[Na+].[Na+].CC1=CC(C)=C(C=C1S([O-])(=O)=O)\N=N\C2=C(O)C3=C(C=CC=C3)C(=C2)S([O-])(=O)=O

InChI

InChIKey=ONTQJDKFANPPKK-LLIZZRELSA-L

InChI=1S/C18H16N2O7S2.2Na/c1-10-7-11(2)16(28(22,23)24)8-14(10)19-20-15-9-17(29(25,26)27)12-5-3-4-6-13(12)18(15)21;;/h3-9,21H,1-2H3,(H,22,23,24)(H,25,26,27);;/q;2*+1/p-2/b20-19+;;

HIDE SMILES / InChI

Molecular Formula	Na
Molecular Weight	22.98976928
Charge	1
Count

Stereochemistry	ACHIRAL
Additional Stereochemistry	No
Defined Stereocenters	0 / 0
E/Z Centers	0
Optical Activity	NONE

Molecular Formula	C18H14N2O7S2
Molecular Weight	434.443
Charge	-2
Count

Stereochemistry	ACHIRAL
Additional Stereochemistry	No
Defined Stereocenters	0 / 0
E/Z Centers	1
Optical Activity	NONE

Description
Sources: https://cosmetics.specialchem.com/product/i-symrise-dragocolor-fd-c-red-no-4-620093 | https://www.ewg.org/skindeep/ingredient/702429/FD%26C_RED_4/ | https://www.drugs.com/inactive/fd-c-red-no-4-248.html

FD&C Red 4 is a synthetic dye produced from petroleum. It is a red coloring pigment, soluble in water. This dye is FDA-approved for use in food, pharmaceuticals, cosmetics and medical devices. Cosmetics applications include: alcoholic perfumes, decorative cosmetics, toilet soap, syndet and liquid tensid products.

Approval Year

Substance Class	Chemical Created by `admin` on `Mon Mar 31 18:20:01 GMT 2025` Edited by `admin` on `Mon Mar 31 18:20:01 GMT 2025`
Record UNII	X3W0AM1JLX
Record Status	`Validated (UNII)`
Record Version

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Name

Type

Language

FD&C RED NO. 4

Common Name

English

CI 14700

Preferred Name

English

RED 4

Preferred Name

English

PONCEAU SX

Preferred Name

English

AKA504

Preferred Name

English

PONCEAU SX [MI]

Common Name

English

FD&C RED NO. 4 [II]

Common Name

English

1-NAPHTHALENESULFONIC ACID, 3-((2,4-DIMETHYL-5-SULFOPHENYL)AZO)-4-HYDROXY-, DISODIUM SALT

Common Name

English

DISODIUM 3-((2,4-DIMETHYL-5-SULPHONATOPHENYL)AZO)-4-HYDROXYNAPHTHALENE-1-SULPHONATE

Systematic Name

English

1-NAPHTHALENESULFONIC ACID, 3-(2-(2,4-DIMETHYL-5-SULFOPHENYL)DIAZENYL)-4-HYDROXY-, SODIUM SALT (1:2)

Common Name

English

FDC RED NO. 4

Common Name

English

PONCEAU SX [IARC]

Common Name

English

3-((2,4-DIMETHYL-5-SULFOPHENYL)AZO)-4-HYDROXY-1-NAPHTHALENESULFONIC ACID, DISODIUM SALT

Common Name

English

FD&C RED 4

Common Name

English

SCARLET GN

Common Name

English

FOOD RED 1

Common Name

English

CRIMSON 4R

Common Name

English

1-NAPHTHALENESULFONIC ACID, 4-HYDROXY-3-((6-SULFO-2,4-XYLYL)AZO)-, DISODIUM SALT

Common Name

English

3-((2,4-DIMETHYL-5-SULFOPHENYL)AZO)-4-HYDROXY-1-NAPHTHALENESULFO

Common Name

English

Classification Tree Code System Code

CFR

21 CFR 74.2304