CAS 3118-97-6: Sudan Red

Description:Sudan Red, specifically Sudan Red 7B, is an organic dye belonging to the azo dye family, characterized by its vivid red color. It is primarily used in various applications, including textiles, plastics, and as a biological stain. The chemical structure of Sudan Red features an azo group (-N=N-) that connects two aromatic rings, contributing to its stability and color properties. This compound is lipophilic, allowing it to dissolve in organic solvents while being less soluble in water. Sudan Red has been utilized in histology for staining lipids and fats in biological samples, aiding in the visualization of cellular structures. However, it is important to note that Sudan Red has raised health concerns due to its potential carcinogenic properties, leading to restrictions on its use in food products and certain consumer goods. As a result, regulatory agencies monitor its presence in various applications to ensure safety and compliance with health standards.

Formula:C₁₈H₁₆N₂O

InChI:InChI=1S/C18H16N2O/c1-12-7-9-16(13(2)11-12)19-20-18-15-6-4-3-5-14(15)8-10-17(18)21/h3-11,21H,1-2H3

InChI key:InChIKey=JBTHDAVBDKKSRW-UHFFFAOYSA-N

SMILES:OC=1C=CC=2C=CC=CC2C1N=NC3=CC=C(C=C3C)C

Synonyms:
(1E)-1-[(2,4-dimethylphenyl)hydrazono]naphthalen-2(1H)-one
1-(2,4-Dimethylphenylazo)-2-naphthol
1-(2,4-Xylidylazo)-2-Naphthol
1-[(2,4-dimethylphenyl)hydrazono]naphthalen-2(1H)-one
1-[2,4-Xylylazo]-2-Naphthol
1-[2-(2,4-Dimethylphenyl)diazenyl]-2-naphthalenol
2-Naphthalenol, 1-[(2,4-dimethylphenyl)azo]-
2-Naphthalenol, 1-[2-(2,4-dimethylphenyl)diazenyl]-
AF Red No. 5
Brasilazina Oil Scarlet 6G
See more synonyms
Brilliant Oil Scarlet B
Calco Oil Scarlet Bl
Calco Oil Scarlet Zbl
Ceres Orange RR
Cerisol Scarlet G
Ci 12140
Ci No 12140
Ext D and C Red No. 14
FD and C Red No. 32
Fast Oil Orange II
Fat Ponceau
Fat Scarlet 2G
Grasan Orange 3R
Japan Red 5
Japan Red 505
Japan Red No.5
Lacquer Orange VR
NSC 10457
Oil Orange 2R
Oil Orange KB
Oil Orange N Extra
Oil Orange R
Oil Orange X
Oil Orange XO
Oil Red XO
Oil Scarlet
Oil Scarlet 371
Oil Scarlet 6G
Oil Scarlet BL
Oil Scarlet YS
Red 505
Red No. 5
Resin Scarlet 2R
Solvent Orange 7
Somalia Orange 2R
Somalia Orange A 2R
Sudan 2
Sudan Orange RPA
Sudan Orange RRA
Sudan Red
Sudan Red II
Sudan orange
C.I. Solvent Orange 7

Found 13 products.

Product data	Purity	Price range	Estimated delivery
Sudan II [=1-(2,4-Xylidylazo)-2-naphthol] REF: 3B-O0101CAS: 3118-97-6	>95.0%(E)	30.00 €	Mon 07 Apr 25
2-Naphthalenol, 1-[(2,4-dimethylphenyl)azo]- REF: IN-DA00I5UCCAS: 3118-97-6	98%	24.00 €~148.00 €	Mon 14 Apr 25
Sudan II REF: 54-OR1015095CAS: 3118-97-6	- - -	36.00 €~1,336.00 €	Tue 15 Apr 25
Sudan II (C.I. 12140) REF: 7W-GT6523CAS: 3118-97-6	≥ 85.0%	22.00 €~63.00 €	Tue 15 Apr 25
Sudan II REF: 54-BUP17007CAS: 3118-97-6	98.45%	183.00 €~1,510.00 €	Tue 15 Apr 25
Sudan 2 100 µg/mL in Acetonitrile REF: 04-A16986102AL-100CAS: 3118-97-6	- - -	76.00 €	Thu 17 Apr 25
Sudan II, pure REF: AC-19015CAS: 3118-97-6	- - -	42.00 €	Thu 17 Apr 25
Sudan 2 REF: 04-C16986102CAS: 3118-97-6	- - -	109.00 €	Thu 17 Apr 25
Sudan II REF: TM-TN2363CAS: 3118-97-6	98.45%	54.00 €~259.00 €	Mon 21 Apr 25
Red No.505 for TLC RS REF: 2K-4022000021CAS: 3118-97-6	- - -	To inquire	Tue 22 Apr 25
Sudan II REF: 10-F493800CAS: 3118-97-6	93.0%	To inquire	Thu 24 Apr 25
Sudan II REF: TR-S688890CAS: 3118-97-6	- - -	111.00 €~187.00 €	Thu 24 Apr 25
Sudan II REF: 3D-FS52641CAS: 3118-97-6	Min. 95%	- - -	Discontinued product