SUDAN I

PRODUCT IDENTIFICATION

 
CAS NO 842-07-9

SUDAN I

EINECS NO. 212-668-2
FORMULA C6H5N=NC10H6OH
MOL WT. 248.28
H.S. CODE 3204.19.2090
TOXICITY  
SYNONYMS 1-Benzoazo-2-naphthol; 1-Phenylazo-2-naphthol;
1-Phenylazo-beta-naphthol ; 2-Hydroxy-1-phenylazonaphthalene; 2-Hydroxynaphthyl-1-azobenzene; 2-Naphtholazobenzene; Atul Orange R; Benzene-1-azo-2-naphthol; Benzeneazo-beta-naphthol; Brasilazina Oil Orange; Brilliant Oil Orange R; C.I. 12055; C.I. Disperse Yellow 97; C.I. Solvent Yellow 14;  Fast Oil Orange I; Fat Orange I; Fat Orange R; Fat Orange RS; Fat Soluble Orange;  Oil Orange; Oil Orange 2311; Oil Orange 2B; Oil Orange 31; Solvent Yellow 14; Spirit Orange; Spirit Yellow I; Stearix Orange; Sudan 1; Sudan Orange R; alpha-Phenylazo-beta-naphthol; Other RN: 104407-03-6
SMILES c12c(\N=N\c3ccccc3)c(ccc1cccc2)O

CLASSIFICATION

 Coloring Agent, Azo dye, Solvent dye, Naphthol

EXTRA NOTES

 Overall Carcinogenic Evaluation: Group 3
Sudan I is a lysochrome, a diazo-conjugate dye, used as an industrial dye, added to products such as waxes, oils, petrol, solvents and polishes. Sudan I is a category 3 carcinogen previously, now banned, used to color certain foodstuffs. 

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE orange to red powder
MELTING POINT 132 C
BOILING POINT 202 C (Sublimed)
SPECIFIC GRAVITY

 

SOLUBILITY IN WATER Insoluble

SOLVENT SOLUBILITY

Acetone (25), Butyl acetate (30), Toluene (80), EtOH (4)

AUTOIGNITION  
pH  
VAPOR DENSITY  
log P 5.51 (Octanol-water)
VAPOR PRESSURE 7.34E-08 (mmHg at 25 C)
HENRY LAW CONSTANT 2.62E-11 (atm-m3/mole at 25 C)
OH RATE CONSTANT 1.83E-11 (cm3/molecule-sec at 25 C Atmospheric )
NFPA RATINGS  

AUTOIGNITION

 

REFRACTIVE INDEX

 

FLASH POINT

 

STABILITY Stable under normal conditions.

EXTERNAL LINKS & GENERAL DESCRIPTION

Wikipedia Linking

Google Scholar Search

Drug Information Portal (U.S. National Library of Medicine) - SUDAN I

PubChem Compound Summary - SUDAN I

IPCS INCHEM - SUDAN I

http://www.bfr.bund.de/
Federal Institute for Risk Assessment (BfR) - Dyes Sudan I to IV in food

Local: Sudan is a group of solvent dye, frequently called lysochrome (Lyso- means dissolving and -chrome means colour). In structural classification, sudan belongs to diazo dye. Azo colorant molecule can be described as aryl-N=N-R, where R is aryl, heteroaryl or -CH=C(OH)-. Solvent dyes are insoluble in water but soluble in nonpolar organic solvents and fats. It is usually used as a solution in an organic solvent. Azo structure solvent dyes are often responsible yellow-red color whereas anthraquinone structure solvent dyes tend to be green-blue. Some other structures for solvent dyes include heterocyclic rings, metal complex, pyrazolone, xanthene, and ketoamine. Solvent dyes do not ionise. Solvent dye, undergoing molecular rearrangement, is dissoluted in the substrate. It colours and binds to the lipids resulting in showing colored regions. In industrial field, it is used in coloring oils, waxes, greases, fats, hydrocarbons derivatives, polishes, oily insecticides, and acrylic emulsions. Sudans are used for demonstrating fats, triglycerides and lipoproteins present in tissues as biological stains.

  • Sudan I [Solvent Orange R, CAS #: 842-07-9]; a yellow lysochrome; C.I. solvent yellow 14; carcinogen suspect. Chemically 1-phenylazo-2-naphthol.
  • Sudan II [Solvent Orange 7, CAS #: 3118-97-6]; an orange lysochrome; C.I. Solvent Orange 7; carcinogen suspect. Chemical designation 1-(2,4-Dimethylphenylazo)-2-naphthol
  • Sudan III [Sudan Red, CAS #: 85-86-9] A red lysochrome; C.I. Solvent Red 23; used as a stain for the demonstration of triglycerides and fats. Chemical designation 1-[4-(Phenylazo)phenylazo]-2-naphthol.
  • Sudan IV [Scarlet Red, CAS #: 85-83-6] A scarlet red lysochrome; Solvent Red 24; used as a stain for the demonstration of triglycerides and fats. deeper stain than Sudan III,Chemical designation 1-[[2-methyl-4-[(2-methylphenyl)azo]phenyl]azo]-2-Naphthalenol
  • Sudan Black B [CAS #: 4197-25-5],  a black lysochrome; Solvent Black 3; used as a stain for the demonstration of fat vacuoles in bacterial cells. Cleared with xylol and counterstained with safranin. Chemical designation 2,3-Dihydro-2,2-dimethyl-6-[[4-(phenylazo)-1-naphthyl]azo]-1H-Perimidine.

 

SUDAN PRODUCTS

Product

C.I. Name

C.I. No.

CAS No.

Sudan Yellow 1339   10335 119-75-5
Sudan Yellow R Solvent Yellow 1 11000 60-09-3
Sudan Red B Solvent Red 25

 

 3176-79-2
Sudan Yellow GG

Solvent Yellow 2

11020

 60-11-7
Scarlet Red Solvent Red 24 26105 85-83-6
Sudan III Solvent Red 23 26100 85-86-9
Fat Yellow B

Solvent Yellow 3

11160

 97-56-3
Sudan Green 4B Solvent Green 3 61565 128-80-3
Sudan Blue GA Solvent Blue 11 61525 128-85-8
Sudan I Solvent Yellow 14 12055 842-07-9
Sudan Red G Solvent Red 1 12150 1229-55-6
Sudan Orange G Solvent Orange 1 11920 2051-85-6
Sudan Yellow GGN Solvent Yellow 56 11021 2481-94-9
Sudan Red 2R Pigment Red 40 12170 2653-64-7
Sudan Red Solvent Orange 7 12140 3118-97-6
Sudan Black B Solvent Black 3 26150 4197-25-5
Sudan Yellow 3G Solvent Yellow 16 12700 4314-14-1
Fat red 7B Solvent Red 19 26050 6368-72-5
Sudan Blue B Solvent Blue 63 61520 6408-50-0
Fat Brown RR Solvent Brown 1 11285 6416-57-5
Sudan Blue

 

 

 6994-46-3
Sudan Black

 

 

 56996-93-1
SALES SPECIFICATION

APPEARANCE

orange to red powder

DYE CONTENT 97.0% min

pH

7 - 9 (aq. extract)

ASH

1.0% max

BULK DENSITY 0.13 - 0.18 (g/ml)

WATER

1.0% max

TRANSPORTATION
PACKING  
HAZARD CLASS  
UN NO.  
SAFETY INFORMATION

HAZARD OVERVIEW

May cause allergic skin reaction. May cause irritation. Target Organs: Skin.

GHS

 
SIGNAL WORD Warning

PICTOGRAMS

HAZARD STATEMENTS

H317:  May cause an allergic skin reaction
H341:  Suspected of causing genetic defects
H351:  Suspected of causing cancer
H413:  May cause long lasting harmful effects to aquatic life

PRECAUTIONARY STATEMENTS

P261:  Avoid breathing dust/fume/gas/mist/vapors/spray
P273:  Avoid release to the environment
P280:  Wear eye protection/face protection
EC DIRECTIVES

 
HAZARD CODES

Xn Harmful

RISK PHRASES

40:  Limited evidence of a carcinogenic effect.
43:  May cause sensitisation by skin contact.
53:  May cause long-term adverse effects in the aquatic environment.
68:  Possible risks of irreversible effects.

SAFETY PHRASES

22:  Do not breathe dust.
36/37:  Wear suitable protective clothing and gloves.
46:  If swallowed, seek medical advice immediately and show this container or label.
61:  Avoid release to the environment. Refer to special instructions / safety data sheets.