| Identification | More | [Name]
Solvent Red 25 | [CAS]
3176-79-2 | [Synonyms]
1-[[3-methyl-4-[(3-methylphenyl)azo]phenyl]azo]-2-naphthol
CI 26110
CI NO 26110
LABOTEST-BB LT00452138
solvent red 25
SUDAN R
SUDAN RED B
1-[[3-methyl-4-[(3-methylphenyl)azo]phenyl]azo]-2-naphthaleno
C.I.Solventred25
TransparentredYJO-1
sudan red B (dye content 97%)
SUDAN RED B, FOR MICROSCOPY
Standardformicroscopy
Transparent Red S-130
2-Naphthalenol, 1-[[3-methyl-4-[(3-methylphenyl)azo]phenyl]azo]-
C Red No17 WO85
Krasol Dark Red G.
1-[4-(3-Methylphenylazo)-3-methylphenylazo]naphthalene-2-ol | [EINECS(EC#)]
221-647-7 | [Molecular Formula]
C24H20N4O | [MDL Number]
MFCD00021456 | [Molecular Weight]
380.44 | [MOL File]
3176-79-2.mol |
| Chemical Properties | Back Directory | [Melting point ]
173-175 °C(lit.) | [Boiling point ]
618.8±55.0 °C(Predicted) | [density ]
1.19±0.1 g/cm3(Predicted) | [storage temp. ]
Refrigerator | [solubility ]
Acetonitrile (Slightly), Dichloromethane (Slightly), DMSO (Slightly) | [Colour Index ]
26110 | [form ]
Solid | [pka]
13.45±0.50(Predicted) | [color ]
Very Dark Red | [Major Application]
cleaning products
cosmetics
food and beverages
personal care | [InChI]
1S/C24H20N4O/c1-16-6-5-8-19(14-16)25-27-22-12-11-20(15-17(22)2)26-28-24-21-9-4-3-7-18(21)10-13-23(24)29/h3-15,29H,1-2H3/b27-25+,28-26+ | [InChIKey]
NHXXLZBKTKNTEF-NBHCHVEOSA-N | [SMILES]
Cc1cccc(c1)\N=N\c2ccc(cc2C)\N=N\c3c(O)ccc4ccccc34 | [CAS DataBase Reference]
3176-79-2(CAS DataBase Reference) |
| Hazard Information | Back Directory | [Uses]
Solvent Red 25 (cas# 3176-79-2) is a useful research chemical. Dyes and metabolites, Environmental Testing. | [Preparation]
2-Methyl-4-(o-tolyldiazenyl)benzenamine diazotization, and Naphthalen-2-ol coupling. | [Properties and Applications]
red. Red powder. Insoluble in water, soluble in ethanol, acetone and so on the many kinds of solvent, resistance to 5% of hydrochloric acid and sodium carbonate. In concentrated sulfuric acid to blue light green, dilution after red precipitation; In 10% of the sulfuric acid insoluble; In concentrated sodium hydroxide solution insoluble; In concentrated nitric acid for brown solution; In 10% sodium hydroxide solution insoluble.
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Standard
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Light Fastness
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Heat-resistant(℃)
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water
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Sodium Carbonate(5%)
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Hydrochloric acid(5%)
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Melting point
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Stable
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ISO
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Good
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150
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Insoluble
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General
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Good
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