Home Categories Organic Chemistry 3,3'-Dichlorobenzidine
A3431512

3,3'-Dichlorobenzidine , 1000μg/ml,inPurgeandTrapMethanol , 91-94-1

CAS NO.:91-94-1

Empirical Formula: C12H10Cl2N2

Molecular Weight: 253.13

MDL number: MFCD00043917

EINECS: 202-109-0

Update time: 2022-07-08

PRODUCT Properties

Melting point: 132.5°C
Boiling point: 398.89°C (rough estimate)
Density  1.3171 (rough estimate)
vapor pressure  4.2 x 10-7 at 25 °C (estimated, Howard, 1989)
refractive index  1.6400 (estimate)
Flash point: 10 °C
storage temp.  2-8°C
solubility  Soluble in ethanol, benzene, and glacial acetic acid (Windholz et al., 1983)
pka 2.70±0.10(Predicted)
Water Solubility  3.114mg/L(25 ºC)
Henry's Law Constant 4.5 x 10-8 atm?m3/mol at 25 °C (estimated, Howard, 1989)
Stability: Stable. Incompatible with strong oxidizing agents.
InChIKey HUWXDEQWWKGHRV-UHFFFAOYSA-N

Description and Uses

3,30-Dichlorobenzidine is a gray or purplecrystalline solid. Molecular weight =253.14; Boilingpoint =368℃; Freezing/Melting point = 132.8℃;Autoignition temperature =350℃. Hazard Identification(based on NFPA-704 M Rating System): Health 0,Flammability 1, Reactivity 0. Practically insoluble in water;solubility = 0.07% at 15℃.

Intermediate in the manufacture of azo dyes and pigments for printing inks, textiles, paints, plastics, and crayons; curing agent for isocyanate-terminated polymers and resins; rubber compounding ingredient; analytical determination of gold; formerly used as chemical intermediate for direct red 61 dye.

Safety

Symbol(GHS) 
GHS07,GHS08,GHS09
Signal word  Danger
Hazard statements  H312-H317-H350-H410
Precautionary statements  P201-P202-P273-P280-P302+P352+P312-P308+P313
Hazard Codes  T,N,F
Risk Statements  45-21-43-50/53-52/53-39/23/24/25-23/24/25-11-51/53
Safety Statements  53-45-60-61-36/37-16-7
RIDADR  UN 3077 9/PG 3
WGK Germany  3
RTECS  DD0550000
HazardClass  IRRITANT
HS Code  29215900
Toxicity Acute oral LD50 for rats as free base or dihydrochloride are 7,070 and 3,820, respectively (Gerade and Gerade, 1974).

RELATED PRODUCTS