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Name	3,3'-Dimethoxybenzidine dihydrochloride	EINECS	243-737-5
CAS No.	20325-40-0	Density	N/A
PSA	70.50000	LogP	5.30160
Solubility	1-5 g/100 mL at 20 °C in water	Melting Point	268 °C
Formula	C₁₄H₁₆N₂O₂^.2HCl	Boiling Point	391.3 °C at 760 mmHg
Molecular Weight	317.24	Flash Point	202.8 °C
Transport Information	UN 2811	Appearance	Off-white or grey tablets
Safety	53-45	Risk Codes	45-22
Molecular Structure		Hazard Symbols	T
Synonyms	Benzidine,3,3'-dimethoxy-, dihydrochloride (8CI);[1,1'-Biphenyl]-4,4'-diamine, 3,3'-dimethoxy-,dihydrochloride (9CI);C.I. DisperseBlack 6 dihydrochloride;o-Dianisidine dihydrochloride;

3,3'-Dimethoxybenzidine dihydrochloride Chemical Properties

MF: C₁₄H₁₈C_l2N₂O₂

The Synonyms of 3,3'-Dimethoxybenzidine dihydrochloride(20325-40-0) is 3,3'-DIMETHOXYBENZIDINE DIHYDROCHLORIDE;3,3'-Dimethoxy-[1,1'-biphenyl]-4,4'-diamine dihydrochloride;
MW: 317.21
EINECS: 243-737-5
Product Categories: Biphenyl & Diphenyl ether
Mol File: 20325-40-0.mol
mp:268 °C
storage temp: 2-8°C
Water Solubility:1-5 g/100 mL at 20 ^oC
Surface Tension: dyne/cm
Density: 1.01g/cm³
Flash Point: 202.8 °C
Enthalpy of Vaporization: 64.09 kJ/mol
Boiling Point: 391.3 °C at 760 mmHg
BRN:3917996

3,3'-Dimethoxybenzidine dihydrochloride Uses

The 3,3'-Dimethoxybenzidine dihydrochloride(20325-40-0) is used as azo dyesintermediates, such as the system of direct blue RG, Direct Blue 5B, Sky Blue 6B dye, etc., can also be used to detect gold, copper, cobalt and vanadium and other elements

3,3'-Dimethoxybenzidine dihydrochloride Toxicity Data With Reference

1.	mmo-sat 100 nmol/plate	MUREAV Mutation Research. 136 (1984),33.
2.	mma-sat 10 nmol/plate	EMMUEG Environmental and Molecular Mutagenesis. 10 (1987),263.
3.	orl-rat TDLo:1040 mg/kg/1Y-I:CAR,REP	JNCIAM Journal of the National Cancer Institute. 41 (1968),985.
4.	scu-mus TDLo:1152 mg/kg/2Y-I:ETA,REP	VOONAW Voprosy Onkologii. Problems of Onkology. 25 (7)(1979),43.

Hazard Codes:T
Risk Statements:45-22
R45:May cause cancer；
R22: Harmful if swallowed ;
RIDADR:2811
RTECS:DD1050000
HazardClass:6.1(a)
PackingGroup:II

3,3'-Dimethoxybenzidine dihydrochloride Consensus Reports

NTP Carcinogenesis Studies (Gavage); Clear Evidence: rat NCITR* National Cancer Institute Carcinogenesis Technical Report Series. (Bethesda, MD 20014) No. NTP-TR-372 ,1990. . Reported in EPA TSCA Inventory.

3,3'-Dimethoxybenzidine dihydrochloride Safety Profile

Confirmed carcinogen with experimental carcinogenic and tumorigenic data. Experimental reproductive data. Mutation data reported. When heated to decomposition it emits very toxic fumes of NO_x and HCl.;
Safety Statements:53-45
S53:Avoid exposure - obtain special instruction before use ;
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) ;
WGK Germany:3

3,3'-Dimethoxybenzidine dihydrochloride Standards and Recommendations

NIOSH REL: (Benzidine-Based Dye) Reduce to lowest feasible level

3,3'-Dimethoxybenzidine dihydrochloride Specification

Incompatibilities with Oxidizing agents.
The 3,3'-Dimethoxybenzidine dihydrochloride(20325-40-0) is Stable under normal temperatures and pressures.
The Decomposition is hydrogen chloride, nitrogen oxides, carbon monoxide, carbon dioxide, nitrogen.

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