ChemicalBook--->CAS DataBase List--->81-37-8

81-37-8

81-37-8 Structure

81-37-8 Structure
IdentificationBack Directory
[Name]

FLUOROL YELLOW 088
[CAS]

81-37-8
[Synonyms]

C.I.45550
Fluorol 5G
SOLVENT GREEN 4
Einecs 201-345-1
FLUOROL YELLOW 088
C.I. Solvent Green 4
Fluorescent Green LF
Solvent green 4 (C.I. 45550)
C.I.Fluorescent Brightener 74
2,8-dimethylnaphtho[3,2,1-kl]xanthene
2,1-kl]xanthene,2,8-dimethyl-naphtho[
2,1-kl]xanthene,2,8-dimethyl-Naphtho[3
Naphtho(3,2,1-kl)xanthene, 2,8-dimethyl-
[EINECS(EC#)]

201-345-1
[Molecular Formula]

C22H16O
[MDL Number]

MFCD00083335
[MOL File]

81-37-8.mol
[Molecular Weight]

296.36
Chemical PropertiesBack Directory
[Boiling point ]

512.5±30.0 °C(Predicted)
[density ]

1.234±0.06 g/cm3(Predicted)
[storage temp. ]

Refrigerator, Under inert atmosphere
[solubility ]

Chloroform (Slightly), DMSO (Slightly, Heated), Methanol (Very Slightly)
[form ]

Solid
[color ]

Yellow to Very Dark Orange
[EPA Substance Registry System]

Naphtho[3,2,1-kl]xanthene, 2,8-dimethyl- (81-37-8)
Hazard InformationBack Directory
[Uses]

Fluorol Yellow 088 is a polyaromatic organic dye used to stain plant tissue.
[Preparation]

p-Cresol (2 Moore) and Phthalic anhydride (1 Moore) condensation get 2 ‘, 7 ‘- dimethyl – fluoran in 24% sulfuric acid?central change, its product with zinc and ammonia in the pressure reduction get dye, and then in 250 ~ 280 ℃ / 1-2 mmHG sublimation, refined.
[Properties and Applications]

dark olive green (mineral oil). Used for hydrocarbon solvent, grease, paraffin wax color
Standard Light Fastness Heat-resistant(℃) water Sodium Carbonate(5%) Hydrochloric acid(5%)
Melting point Stable
ISO General Insoluble
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