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4,4′-Diaminodiphenyl

4,4′-Diaminodiphenyl structure

CAS No:
92-87-5
Formula:
C12H12N2
Chemical Name:
4,4′-Diaminodiphenyl
Synonyms:
[1,1′-Biphenyl]-4,4′-diamine;Benzidine;4,4′-Biphenyldiamine;C.I. Azoic Diazo Component 112;4,4′-Diaminobiphenyl;p-Diaminodiphenyl;4,4′-Diphenylenediamine;Fast Corinth Base B;4,4′-Bianiline;4,4′-Diaminodiphenyl;p,p′-Diaminobiphenyl;p,p′-Bianiline;4,4′-Diamino-1,1′-biphenyl;4′-Amino-[1,1′-biphenyl]-4-ylamine;4-(4-Aminophenyl)aniline;NSC 146476;4,4′-Diaminobenzidine;46310-07-0;56481-94-8
Categories:
Analytical Chemistry > Standard

Description

It appears as white or light pink crystalline powder with a melting point of 125 ℃, the boiling point of 400 ℃, (98.7kPa) and the relative density of 1.250 (20/4 ℃). It is soluble in boiling ethanol, acetic acid and diluted hydrochloric acid, slightly soluble in ether, slightly soluble in boiling water and slightly soluble in cold water. Its color is darkened under air and light. Analysis reagents are usually benzodine hydrochloride or acetate, which is more soluble, and sulfate is commonly use

4,4′-Diaminodiphenyl Basic Attributes

Molecular Weight：

184.24

Exact Mass：

184.24

EC Number：

202-199-1

HScode：

2921590020

Characteristics

PSA：

XLogP3：

1.34

Appearance：

off-white solid

Density：

1.250 g/cm³ @ Temp: 20 °C

Melting Point：

120 °C

Boiling Point：

401 °C

Flash Point：

11 °C

Refractive Index：

1.667

Water Solubility：

H2O: Sparingly soluble . <0.1 g/100 mL at 22 ºC

Storage Conditions：

2-8°C

Vapor Pressure：

Based on the specific vapor density value of 6.36 (Sims et al., 1988), the vapor pressure wascalculated to be 0.83 at 20 °C.

Vapor Density：

6.36

Toxicity：

Oral-Rat LD50: 309 mg/kg; Oral-Mouse LD50: 214 mg/kg

Flammability characteristics：

Combustible; decomposes toxic nitrogen oxide gas when heated; poisoning produces hemolysis, bone marrow suppression; nausea, vomiting, and liver and kidney damage

Safety Information

Packing level：

Hazard category：

6.1(a)

Transport codes：

UN 1885 6.1/PG 2

wgk germany：

hazard class code：

45-22-50/53-52/53-39/23/24/25-23/24/25-11-36/37/38-20/21/22-51/53-67

safety instructions：

53-45-60-61-36/37-16-7-36-26

RTECS Number：

DC9625000

Marks：

T,N,F,Xn

Storage features：

Treasury is ventilated at low temperature and dry; stored separately from oxidants and food additives

Stability/Shelf Life：

Stable. Combustible. Incompatible with strong oxidizing agents.

Precautionary statement(s)：

P201-P210-P260-P280-P301 + P310 + P330-P370 + P378

Hazard Statements：

H225-H301 + H311 + H331-H350-H370-H411

Toxicity

Toxicity class：

highly toxic

4,4′-Diaminodiphenyl Use and Manufacturing

Methods of Manufacturing

The reduction of nitrobenzene produces hydrogenated azobenzene, which is then rearranged. In industrial production, hydrogenated azobenzene is rearranged via benzidine hydrochloride, and then concentrated sulfuric acid is added to obtain benzidine sulfate.

Uses

Potentially mutagenic compound.

Computed Properties

Molecular Weight:184.24
XLogP3:1.3
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:2
Rotatable Bond Count:1
Exact Mass:184.100048391
Monoisotopic Mass:184.100048391
Topological Polar Surface Area:52
Heavy Atom Count:14
Complexity:145
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Material

4-Chloroaniline

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Content: 99%

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Benzidine

CAS No.: 92-87-5

Grade: Industrial Grade

Content: 99%

Inquiry