3,3'-Dimethylbenzidine

Base Information

• Chemical Name: 3,3'-Dimethylbenzidine
• CAS No.: 119-93-7
• Molecular Formula: C14H16N2
• Molecular Weight: 212.294
• Hs Code.: 29215900
• European Community (EC) Number: 204-358-0
• ICSC Number: 0960
• UN Number: 3077
• UNII: 63HLO2IV6K
• DSSTox Substance ID: DTXSID5024059
• Nikkaji Number: J1.189D
• Wikidata: Q413500
• NCI Thesaurus Code: C44428
• ChEMBL ID: CHEMBL85109
• Mol file: 119-93-7.mol

Synonyms:2-tolidine;2-tolidine dihydrochloride;2-tolidine dihydrofluoride;2-tolidine hexahydrofluoride;2-tolidine perchlorate;2-tolidine perchlorate (1-);2-tolidine tetrahydrofluoride;3,3'-dimethylbenzidine;o-tolidine;tolidine blue

Chemical Property of 3,3'-Dimethylbenzidine

Chemical Property:

• Appearance/Colour: light grey-green to grey powder
• Melting Point: 128-131 °C(lit.)
• Refractive Index: n20/D 1.341
• Boiling Point: 361 °C at 760 mmHg
• PKA: 4.59±0.10(Predicted)
• Flash Point: 205.1 °C
• PSA: 52.04000
• Density: 1.106 g/cm³
• LogP: 4.29720
• Storage Temp.: ?20°C
• Solubility.: 2% HCl: 10 mg/mL, clear
• Water Solubility.: Slightly soluble in water.
• XLogP3: 2.3
• Hydrogen Bond Donor Count: 2
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 1
• Exact Mass: 212.131348519
• Heavy Atom Count: 16
• Complexity: 205

Purity/Quality:

99.5%min , ^*data from raw suppliers

3,3''-Tolidine ^*data from reagent suppliers

Safty Information:

• Pictogram(s): T,N
• Hazard Codes: T,N,F
• Statements: 45-68-51/53-22-11
• Safety Statements: 53-45-61-16

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Nitrogen Compounds -> Benzidine and Derivatives
• Canonical SMILES: CC1=C(C=CC(=C1)C2=CC(=C(C=C2)N)C)N
• Inhalation Risk: Evaporation at 20 °C is negligible; a harmful concentration of airborne particles can, however, be reached quickly , especially if powdered.
• Effects of Long Term Exposure: This substance is probably carcinogenic to humans.
• Description: 2-Tolidine (orthotolidine, o-tolidine; not to be confused with o-toluidine) is an organic compound with the chemical formula (C6H4(CH3)NH2)2. Several isomers are known; the 3-tolidine derivative is also important commercially. It is a colorless compound although commercial samples are often colored. It is slightly soluble in water. It forms salts with acids, such as the hydrochloride, which is commercially available. 2-Tolidine can be produced by a benzidine rearrangement from a hydrazine derivative derived from 2-nitrotoluene.
• Uses: 2-Tolidine is a commercial aromatic amine used mainly for dye production. 2-Tolidine is an intermediate for the production of soluble azo dyes and insoluble pigments used particularly in the textile, leather and paper industries. 2-Tolidine was widely used as a reagent or indicator in analytical, clinical and forensic chemistry, such as in the analytical determination of gold, or determination of the chlorine level in swimming pool water. o-Tolidine is used extensively in the manufacture of dyes. It is also used as a reagentfor the analysis of gold and free chlorine inwater. Sensitive colorimetric reagent for gold and for free chlorine in water. 3,3'-Dimethylbenzidine be used for preparation polyimide and epoxy resin material.

Technology Process of 3,3'-Dimethylbenzidine

There total 34 articles about 3,3'-Dimethylbenzidine which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 81.0%

N,N'-di-o-tolyl-hydrazinecarboxylic acid tert-butyl ester → o-tolidin (119-93-7)

Guidance literature:

With hydrogenchloride; In ethanol; at 80 ℃; for 2h;

DOI:10.1021/ol060451+

Reference yield: 73.0%

→ o-tolidin (119-93-7)

Guidance literature:

With 3% Pd/C; hydrazine; In ethanol; Heating;

Reference yield: 65.3%

2,2'-dimethylhydrazobenzene (617-22-1) → o-tolidin (119-93-7)

Guidance literature:

2,2'-dimethylhydrazobenzene; With hydrogenchloride; In water; at 30 - 90 ℃; for 2h;

With water; sodium hydroxide; pH=9 - 10;

upstream raw materials:

ethanol

1-methyl-2-nitrobenzene

o-tolidine-6,6'-disulfonic acid

2,2'-dimethylhydrazobenzene

Downstream raw materials:

3,3'-dimethyl-N,N'-bis-(5-nitro-furfurylidene)-benzidine

3,3'-dimethyl-4,4'-diacetylaminobiphenyl

4.4'-Di-(4-decyloxy-benzylidenamino)-3.3'-dimethyl-biphenyl

4,4'-(2,5-dimethyl-pyrrol-1-yl)-3,3'-dimethyl-biphenyl

Refernces

• 1、 -. "DIAMINE COMPOUND, POLYIMIDE PRECURSOR AND POLYIMIDE FILM PREPARED BY USING SAME". Paragraph 0250-0251; 0253; 0274-0275; 0277. . Retrieved 2020/09/26.
• 2、 Kim, Tae Kyung,Lee, Kyung Joo,Cheon, Jae Yeong,Lee, Jae Hwa,Joo, Sang Hoon,Moon, Hoi Ri. "Nanoporous metal oxides with tunable and nanocrystalline frameworks via conversion of metal-organic frameworks". supporting information. p. 8940 - 8946. Retrieved 2013/07/26.