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2,4-Dihydroxyazobenzene

2,4-Dihydroxyazobenzene structure

CAS No:
2051-85-6
Formula:
C12H10N2O2
Chemical Name:
2,4-Dihydroxyazobenzene
Synonyms:
1,3-Benzenediol,4-(2-phenyldiazenyl)-;Sudan G;C.I. Solvent Orange 1;1,3-Benzenediol,4-(phenylazo)-;4-(2-Phenyldiazenyl)-1,3-benzenediol;C.I. 11920;Benzeneazoresorcinol;Ceres Orange G;Ceres orange GN;Cerisol Yellow GR;C.I. Food Orange 3;2,4-Dibenzeneazoresorcinol;Fast Oil Orange T;Fast Oil Yellow G;Fat Orange A;Fat Orange G;Fat Orange GS;Fat Orange RG;Fat Victoria Yellow D;Fast Oil Yellow 2G;Grasol Yellow RSF;Hexacol Oil Yellow GG;Lacquer Orange V 3G;Oil Orange G;Oil Orange 4G;Oil Orange MO;Oil Orange MON;Oil Orange MON Extra;Oil Yellow G Extra;Oil Yellow GG;Organol Orange 2J;Plastoresin Orange F 3A;Resinol Orange G;Solvent Orange 1;Sudan Orange G;Sudan Yellow AR;Tertrogras Orange SG;1504 Yellow;Yellow M Soluble in Grease;Oil-sol. Yellow Zh;2,4-Dihydroxyazobenzene;4-(Phenylazo)resorcinol;Ceres Orange;Orange Au Gras W 2201;NSC 7949
Categories:
Cosmetic Ingredient > Cosmetic Colorant

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Description

red-orange powder

2,4-Dihydroxyazobenzene Basic Attributes

Molecular Weight：

214.22

Exact Mass：

214.22

EC Number：

218-131-9

UNII：

JR7B69ZW9B

NSC Number：

7949

DSSTox ID：

DTXSID9062146

HScode：

32041200

Characteristics

PSA：

65.18000

XLogP3：

3.51320

Appearance：

Red-orange Powder

Density：

1.24g/cm3

Melting Point：

170 °C

Boiling Point：

407.501ºC at 760 mmHg

Flash Point：

262.509ºC

Refractive Index：

1.618

Water Solubility：

0.2g/L(20 ºC)

Vapor Pressure：

0mmHg at 25°C

Safety Information

Transport codes：

NONH for all modes of transport

wgk germany：

hazard class code：

36/37/38

safety instructions：

26-36

RTECS Number：

CZ9027500

Marks：

Precautionary statement(s)：

P261-P305 + P351 + P338

Hazard Statements：

H315-H319-H335

GHS Classification：

|Warning|H315 (98.94%): Causes skin irritation [Warning Skin corrosion/irritation]|P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 182 companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

2,4-Dihydroxyazobenzene Use and Manufacturing

Uses

Food Additives -> COLOUR; -> JECFA Functional Classes

Manufacturing Info：

1,3-Benzenediol, 4-(2-phenyldiazenyl)-: ACTIVE

Use Classification：

Cosmetics -> Cosmetic colorant; Hair dyeing

Food Additive Classes：

Food Additives -> COLOUR;

Computed Properties

Molecular Weight:214.22
XLogP3:3
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:4
Rotatable Bond Count:2
Exact Mass:214.074227566
Monoisotopic Mass:214.074227566
Topological Polar Surface Area:65.2
Heavy Atom Count:16
Complexity:239
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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Guide of 2,4-Dihydroxyazobenzene

Description
Basic Attributes
Characteristics
Safety Information
Use and Manufacturing
Computed Properties
Learn More Other Chemicals

2,4-Dihydroxyazobenzene

SDS

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