82-38-2

Name	Disperse Red 9
CAS	82-38-2
EINECS(EC#)	201-417-2
Molecular Formula	C15H11NO2
MDL Number	MFCD00001197
Molecular Weight	237.25
MOL File	82-38-2.mol

Chemical Properties

Melting point	170-172°C
Boiling point	379.79°C (rough estimate)
density	1.1469 (rough estimate)
vapor pressure	0-0Pa at 20-50℃
refractive index	1.5500 (estimate)
storage temp.	room temp
form	Powder
pka	2.27±0.20(Predicted)
color	Orange to Brown
Water Solubility	73.55ug/L(25 ºC)
InChIKey	SVTDYSXXLJYUTM-UHFFFAOYSA-N
LogP	4.95 at 23℃ and pH8.2
CAS DataBase Reference	82-38-2(CAS DataBase Reference)
NIST Chemistry Reference	1-(N-Methylamino)-9,10-anthraquinone(82-38-2)
EPA Substance Registry System	82-38-2(EPA Substance)

Safety Data

Hazard Codes	Xi
Risk Statements	R36/37/38:Irritating to eyes, respiratory system and skin . less more
Safety Statements	S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . S37/39:Wear suitable gloves and eye/face protection . less more
WGK Germany	3
RTECS	CB0536600
HS Code	2922.39.4500

Raw materials And Preparation Products

Hazard Information

Uses

1-Methylaminoanthraquinone is an important intermediate for manufacturing solvent dyes and acid dyes.

Preparation

1-Chloroanthraquinone?or 9,10-Dioxo-9,10-dihydroanthracene-1-sulfonic acid?in pressure and in the presence of antioxidants with Methanamine for processing.

Synthesis Reference(s)

Organic Syntheses, Coll. Vol. 3, p. 573, 1955
Synthetic Communications, 21, p. 1889, 1991 DOI: 10.1080/00397919108021779

Synthesis

1-Methylaminoanthraquinone, is prepared from anthraquinone- 1-sulfonic acid by replacing SO3H(see page 8), , from 1-chloroanthraquinone by replacing chlorine , , or from 1-nitroanthraquinone by replacing NO2 , .

Properties and Applications

Bright red blue light. Soluble in ethanol, acetone and soluble fiber element, slightly soluble in benzene and carbon tetrachloride, insoluble in special solvent, tao. The strong sulfuric acid for brown, for dark orange after diluted. Used for polyester, polyamide fiber, acrylic, acetate fiber and three acetate fiber dyeing, sheepskin and plastic color. Good levelness, improve rate is high.

Standard(Vinegar fiber)	Ironing Fastness		Light Fastness	Persperation Fastness		Washing Fastness
Standard(Vinegar fiber)	Fading	Stain	Light Fastness	Fading	Stain	Fading	Stain
ISO			4	4	3	4	3

Purification Methods

Crystallise it to constant melting point from butan-1-ol, then from EtOH. It can be sublimed under vacuum. [Beilstein 7 IV 2574.]

Spectrum Detail

Well-known Reagent Company Product Information

Supplier

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