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Disperse Red 9

Disperse Red 9 structure

CAS No:
82-38-2
Formula:
C15H11NO2
Chemical Name:
Disperse Red 9
Synonyms:
S.R111;SOVLENT RED 111;1-(Methylamino)anthraquinone, ≥98.0%;10-Anthracenedione,1-(methylamino)-9;1-Methylamineanthraquinone;1-Methylamino-anthrachinon;9,10-Anthracenedione, 1-(methylamino)-;9,10-Anthracenedione,1-(methylamino)-
Categories:
Dyes and Pigments > Dye

Description

Red powder. Soluble in acetone, ethanol, ethylene glycol ether, linseed oil. Slightly soluble in benzene, carbon tetrachloride. Insoluble in Staudt's solvent. Brown in concentrated sulfuric acid, turns dark orange when diluted.

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

Disperse Red 9 Basic Attributes

Molecular Weight：

237.25

Exact Mass：

237.25

EC Number：

201-417-2

UNII：

5O1807MLL1

NSC Number：

3721

TSCA：

TSCA listed

DSSTox ID：

DTXSID2052570

Color/Form：

Orange to Brown

HScode：

2922.39.4500

Characteristics

PSA：

46.17000

XLogP3：

2.57670

Appearance：

red powder

Density：

1.1469 (rough estimate)

Melting Point：

170-172°C

Boiling Point：

379.79°C (rough estimate)

Flash Point：

195.3ºC

Refractive Index：

1.5500 (estimate)

Water Solubility：

73.55ug/L(25 ºC)

Vapor Pressure：

0-0Pa at 20-50℃

PKA：

2.27±0.20(Predicted)

Henrys Law Constant：

3.3×102mol/(m3Pa) at 25℃, Duchowicz et al. (2020)

Critical Temperature & Pressure：

room temp

Safety Information

Transport codes：

NONH for all modes of transport

wgk germany：

hazard class code：

safety instructions：

26-37/39

RTECS Number：

CB0536600

Marks：

Precautionary statement(s)：

P261-P305 + P351 + P338

Hazard Statements：

36/37/38

GHS Classification：

Not Classified

Drug Information

MeSH Entry Terms：

disperse red 9

Disperse Red 9 Use and Manufacturing

Uses

Disperse Red 9, also called C.I. 60505 and 1-methylamino anthraquinone, is a red dye derived from anthraquinone. Disperse Red 9 is used in some older red and violet-red colored smoke formulations. It is used in the M18 colored smoke grenade and also often in dye packs. Its properties can be improved by coating the dye particles with an inert material, e.g. an epoxy resin.

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

Manufacturing Info：

9,10-Anthracenedione, 1-(methylamino)-: ACTIVE

Computed Properties

Molecular Weight:237.25
XLogP3:3.9
Hydrogen Bond Donor Count:1
Hydrogen Bond Acceptor Count:3
Rotatable Bond Count:1
Exact Mass:237.078978594
Monoisotopic Mass:237.078978594
Topological Polar Surface Area:46.2
Heavy Atom Count:18
Complexity:366
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Material

Acrylonitrile

Chlorobenzene

Dimethyl sulfate

Downstream Products

Methanol

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