D&C RED NO. 33

Possibly Marketed Outside US

First approved in 1950

Details

Stereochemistry	ACHIRAL
Molecular Formula	C16H11N3O7S2.2Na
Molecular Weight	467.384
Optical Activity	NONE
Defined Stereocenters	0 / 0
E/Z Centers	1
Charge	0

SHOW SMILES / InChI

Structure Search

SMILES

[Na+].[Na+].NC1=CC(=CC2=CC(=C(\N=N\C3=CC=CC=C3)C(O)=C12)S([O-])(=O)=O)S([O-])(=O)=O

InChI

InChIKey=LQJVOKWHGUAUHK-BUFQOAPZSA-L

InChI=1S/C16H13N3O7S2.2Na/c17-12-8-11(27(21,22)23)6-9-7-13(28(24,25)26)15(16(20)14(9)12)19-18-10-4-2-1-3-5-10;;/h1-8,20H,17H2,(H,21,22,23)(H,24,25,26);;/q;2*+1/p-2/b19-18+;;

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	C16H11N3O7S2
Molecular Weight	421.404
Charge	-2
Count

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

Description
Sources: https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=dfe6a47c-ec31-4421-877e-f953e4c99889

D&C RED NO. 33, a red dye, is used as a colorant in cosmetic product. It’s also an inactive ingredient of JOHNSONS BATH DISCOVERY BABY GIFT SET, which is used to prevent diaper rash.

Approval Year

Conditions

Condition	Modality	Targets	Highest Phase	Product
Diaper rash 8 Sources: https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=dfe6a47c-ec31-4421-877e-f953e4c99889	Inactive ingredient		Approved 8583	JOHNSONS BATH DISCOVERY BABY GIFT SET Approved Use JOHNSONS BATH DISCOVERY BABY GIFT SET is used to treat and prevent diaper rash. It protects chafed skin due to diaper rash and helps seal out wetness.

Substance Class	Chemical Created by `admin` on `Mon Mar 31 18:27:56 GMT 2025` Edited by `admin` on `Mon Mar 31 18:27:56 GMT 2025`
Record UNII	9DBA0SBB0L
Record Status	`Validated (UNII)`
Record Version

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Name

Type

Language

RED 33

Preferred Name

English

AKA227

Preferred Name

English

D&C RED NO. 33

Common Name

English

ACID RED 33

Preferred Name

English

CI 17200

Preferred Name

English

NSC-12190

Code

English

FD&C RED NO. 33 (DELISTED)

Common Name

English

5-AMINO-4-HYDROXY-3-(PHENYLAZO)-2,7-NAPHTHALENEDISULFONIC ACID, DISODIUM SALT

Common Name

English

AZOFUCHSIN

Common Name

English

C.I. Acid Red 33

Common Name

English

NSC-5004

Code

English

DISODIUM 1-HYDROXY-2-PHENYLAZO-8-AMINONAPHTHALENE-3,6-DISULFONATE

Systematic Name

English

2,7-NAPHTHALENEDISULFONIC ACID, 5-AMINO-4-HYDROXY-3-(2-PHENYLDIAZENYL)-, SODIUM SALT (1:2)

Common Name

English

F D & C RED #33 [VANDF]

Common Name

English

DC RED NO. 33

Common Name

English

D.C. RED NO. 33

Common Name

English

D&C RED NO. 33 [II]

Common Name

English

FD&C RED NO. 33 (DELISTED) [II]

Common Name

English

D & C RED #33 [VANDF]

Common Name

English

FOOD RED 12

Common Name

English

Classification Tree Code System Code

NCI_THESAURUS

C461