Chinese Japanese Germany Korea


Chemical Name:
c.i.24110;ai3-00864;bluebasenb;bluebnbase;C.I. 24110;cellitazolb;FAST BLUE B;Dianisidine;Cellitazol B;cellitazolbn
Molecular Formula:
Formula Weight:
MOL File:


Melting point:
137-138 °C(lit.)
Boiling point:
387.21°C (rough estimate)
1.1079 (rough estimate)
refractive index 
1.6000 (estimate)
Flash point:
403 °F
storage temp. 
Store at RT.
H2O: slightly soluble
Colour Index 
Crystalline Powder
Pink to beige-brown
Water Solubility 
Soluble in alcohol, benzene, ether, chloroform, acetone, most organic solvents and lipids. Slightly soluble in water.
CAS DataBase Reference
119-90-4(CAS DataBase Reference)
NIST Chemistry Reference
Benzidine, 3,3'-dimethoxy-(119-90-4)
EPA Substance Registry System
[1,1'-Biphenyl]- 4,4'-diamine, 3,3'-dimethoxy-(119-90-4)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
  • NFPA
Hazard Codes  T
Risk Statements  45-22
Safety Statements  53-45
RIDADR  2811
WGK Germany  3
RTECS  DD0875000
HazardClass  6.1(a)
PackingGroup  II
HS Code  29222990
Hazardous Substances Data 119-90-4(Hazardous Substances Data)
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
H341 Suspected of causing genetic defects Germ cell mutagenicity Category 2 Warning P201,P202, P281, P308+P313, P405,P501
H350 May cause cancer Carcinogenicity Category 1A, 1B Danger
H351 Suspected of causing cancer Carcinogenicity Category 2 Warning P201, P202, P281, P308+P313, P405,P501
H371 May cause damage to organs Specific target organ toxicity, single exposure Category 2 Warning P260, P264, P270, P309+P311, P405,P501
Precautionary statements:
P201 Obtain special instructions before use.
P202 Do not handle until all safety precautions have been read and understood.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P308+P313 IF exposed or concerned: Get medical advice/attention.
P405 Store locked up.
P501 Dispose of contents/container to..…

NFPA 704

Diamond Hazard Value Description
Flammability   1 Materials that require considerable preheating, under all ambient temperature conditions, before ignition and combustion can occur. Includes some finely divided suspended solids that do not require heating before ignition can occur. Flash point at or above 93.3 °C (200 °F). (e.g. mineral oil, ammonia)
Instability   0 Normally stable, even under fire exposure conditions, and is not reactive with water (e.g. helium,N2)

(NFPA, 2010)

3,3'-DIMETHOXYBENZIDINE price More Price(12)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 33430 o-Dianisidine for spectrophotometric det. of Au, NO2-, Ce(IV), for the detection of Au, Co, Cu, SCN-, V, ≥97.0% 119-90-4 10g $44 2018-11-13 Buy
Sigma-Aldrich 33430 o-Dianisidine for spectrophotometric det. of Au, NO2-, Ce(IV), for the detection of Au, Co, Cu, SCN-, V, ≥97.0% 119-90-4 50g $165 2018-11-13 Buy
TCI Chemical D1344 o-Dianisidine >98.0%(HPLC) 119-90-4 25g $42 2018-11-22 Buy
TCI Chemical D1344 o-Dianisidine >98.0%(HPLC) 119-90-4 100g $112 2018-11-22 Buy
Alfa Aesar A17150 o-Dianisidine, 98+% 119-90-4 25g $70.5 2018-11-13 Buy

3,3'-DIMETHOXYBENZIDINE Chemical Properties,Uses,Production

Chemical Properties

Grey fine crystals


  1. o-Dianisidine (3,3'-DIMETHOXYBENZIDINE) is a colorless or Light purple to brown, highly toxic, crystalline compound that turns violet when exposed to air.
  2. manufacture of azo dyes and pigments. o-Dianisidine is used as an intermediate for the preparation of azo dyes, pigments and o-dianisidine diisocyanate, which finds application in adhesives, polyurethane elastomers and resins.
  3. o-Dianisidine is used for the detection of Au, Co, Cu, SCN-, V; determination of Au, NO2-, Ce(IV) (spectrophotometrically).
  4. Ortho Dianisidine may be used in a novel automated method, used to measure the total antioxidant response (TAR) against potent free radical reactions. It may also be used along with glucose oxidase and peroxidase in the determination of blood and urinary glucose.
  5. o-Dianisidine is used as a redox indicator.
  6. It is also used in various industries like leather, paper, plastics, rubber, and textiles.
  7. It acts as a reagent to detect metals, thiocyanates, and nitrites.
  8. Exposure to this substance causes skin irritation and sensitization. Dianisidine is reasonably anticipated to be a human carcinogen based on evidence of carcinogenicity in experimental animals. (NCI05)

General Description

Colorless crystals or a light brown powder. Turns violet on standing. Carcinogen.

Air & Water Reactions

Finely powdered material is a significant dust explosion hazard. Insoluble in water.

Reactivity Profile

3,3'-DIMETHOXYBENZIDINE is a weak base. Reacts exothermically with acids. Sensitive to heat, air and prolonged exposure to light.

Fire Hazard

3,3'-DIMETHOXYBENZIDINE is combustible.

Safety Profile

Confirmed carcinogen with experimental tumorigenic data. Moderately toxic by ingestion. Mutation data reported. Combustible when exposed to heat or flame. When heated to decomposition it emits toxic fumes of NOx.

3,3'-DIMETHOXYBENZIDINE Preparation Products And Raw materials

Raw materials

Preparation Products


Global( 152)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Mainchem Co., Ltd.
+86-0592-6210733 CHINA 32452 55
Chemwill Asia Co.,Ltd.
86-21-51861608;;; CHINA 23957 58
Jilin Province Yanshen Technology Co., Ltd.
17743007828,0431-80534353 ,QQ:3010266023,2718268519
0431-88607838 CHINA 776 58
Hubei Jusheng Technology Co.,Ltd.
86-188-71490254 CHINA 20084 58
Hubei xin bonus chemical co. LTD
13657299721 CHINA 17424 58
TianJin Alta Scientific Co., Ltd. +86-022-6537-8550
+86-022-2532-9655 China 2775 58
Shanghai Rlavie Technology Co., Ltd. 021-67759270 17717059219 China 85 55
SiChuang NanBu Honesty Technology Co., Ltd. 0838-5675166
0838-5675535 China 695 55
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
+86-10-82849933; China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) China 40275 62


119-90-4(3,3'-DIMETHOXYBENZIDINE)Related Search:

Copyright 2017 © ChemicalBook. All rights reserved