PRODUCT IDENTIFICATION
c12c(\N=N\c3c(cc(\N=N\c4c(cccc4)C)cc3)C)c(ccc1cccc2)O
CLASSIFICATION
EXTRA NOTES
Overall Carcinogenic Evaluation: Group 3
PHYSICAL AND CHEMICAL PROPERTIES
AUTOIGNITION
REFRACTIVE INDEX
EXTERNAL LINKS & GENERAL DESCRIPTION
PubChem Compound Summary - Scarlet Red
http://www.sigmaaldrich.com/This red ет-naphthol disazo dye has the same basic structure as Sudan III with two added methyl groups. This makes it a deeper, more intense stain, but with the hydroxyl group in the ortho position, it has similar physical properties and is fat soluble. This dye has been used industrially to color oils, waxes, shoe polish, greases, oily-resin lacquers, varnishes, cellulose acetate and acrylic resins, and in wood stains. As a biological stain, it is used primarily to stain lipids and fatty substances present in cells and tissues. The color imparted is a function of the solubility of the dye in the substance affected and does not involve chemical bonding. Procedures using either isopropanol or ethanol as stock solutions have been reported
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 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 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 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.
APPEARANCE
DYE CONTENT
80.0% min
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 |