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Stains, Fluorescent Dyes & Histology Reagents

o-Tolidine hydrochoride, GR 99%+

ARAvailable on request

Buy o-Tolidine hydrochoride, GR 99%+ (CAS 612-82-8) from Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-000663.

Pack sizes
o-Tolidine hydrochoride, GR 99%+ chemical structure
CAS number612-82-8
FormulaC14H18Cl2N2
Molar mass285.2 g/mol
Physical formCrystalline
HS code29214330
UN numberUN 3077
Purity≥99%
InChIKeyLUKPNZHXJRJBAN-UHFFFAOYSA-N
IUPAC name4-(4-amino-3-methylphenyl)-2-methylaniline;dihydrochloride

About o-Tolidine hydrochoride, GR 99%+

Researchers and plant chemists source o-Tolidine hydrochoride, GR 99%+ from Zemixal for routine and specialised work. For your records (AR), the material is defined by CAS 612-82-8, formula C14H18Cl2N2 and molar mass 285.2 g/mol. Typical appearance is white to grey to red powder or crystals.

Where it is used

  • Histology & cytology staining
  • Microscopy
  • Clinical laboratories

Safe handling

Solubility: soluble (water). Hazard communication follows GHS (Danger: H302, H350 and H411). Our SDS lists exposure controls and first-aid measures. For transport it ships as UN UN 3077.

Order it in 25 g, 100 g and 1 kg packs or ask for a bulk quotation. You receive a batch certificate of analysis and a 16-section SDS with each order. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Typical uses

  • Histology & cytology staining
  • Microscopy
  • Clinical laboratories

Applications

Grade guides

Specifications and identifiers

Specifications of o-Tolidine hydrochoride, GR 99%+
Product nameo-Tolidine hydrochoride, GR 99%+
Catalogue numberZX-000663
CAS number612-82-8
IUPAC name4-(4-amino-3-methylphenyl)-2-methylaniline;dihydrochloride
Molecular formulaC14H18Cl2N2
Molar mass285.2 g/mol
Exact mass284.0847
GradeAR
Purity / assay≥99%
Physical formCrystalline
AppearanceWhite to grey to red powder or crystals
SolubilitySoluble (water)
H-bond donors / acceptors4 / 2
Topological polar surface area52 Ų
HS code29214330
UN numberUN 3077
InChIKeyLUKPNZHXJRJBAN-UHFFFAOYSA-N
SMILESCC1=C(C=CC(=C1)C2=CC(=C(C=C2)N)C)N.Cl.Cl
PubChem CID108938
Synonyms3,3'-Dimethylbenzidine dihydrochloride, 4,4'-Bianisidine dihydrochloride, 4,4'-Diamino-3,3'-dimethylbiphenyl dihydrochloride, o-Tolidine dihydrochloride, [1,1'-Biphenyl]-4,4'-diamine, 3,3'-dimethyl-, dihydrochloride, (1,1'-Biphenyl)-4,4'-diamine, 3,3'-dimethyl-, dihydrochloride, 2,3'-Dimethylbiphenyl-4,4'-diamine dihydrochloride, DMB2HCl, oTolidine dihydrochloride, 4,4'Biotoluidine dihydrochloride, Benzidine, 3,3'dimethyl, dihydrochloride, 4,4'Diamino3,3'dimethylbiphenyl dihydrochloride

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful
GHS08 Health hazard
Health hazard
GHS09 Hazardous to the environment
Hazardous to the environment

Signal word Danger

  • H302Harmful if swallowed
  • H350May cause cancer
  • H411Toxic to aquatic life with long lasting effects

Precautionary statements P203, P264, P270, P273, P280, P301 + P317, P318, P330, P391, P405, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of o-Tolidine hydrochoride, GR 99%+
25 gQuoted on request
100 gQuoted on request
1 kgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about o-Tolidine hydrochoride, GR 99%+

Which CAS number identifies o-Tolidine hydrochoride, GR 99%+?
o-Tolidine hydrochoride, GR 99%+ is registered under CAS 612-82-8. You may also see it listed as 3,3'-Dimethylbenzidine dihydrochloride, 4,4'-Bianisidine dihydrochloride, 4,4'-Diamino-3,3'-dimethylbiphenyl dihydrochloride. Our catalogue number for this item is ZX-000663.
What are the formula and molar mass of o-Tolidine hydrochoride, GR 99%+?
For o-Tolidine hydrochoride, GR 99%+, its formula is C14H18Cl2N2 and its molar mass is 285.2 g/mol. InChIKey LUKPNZHXJRJBAN-UHFFFAOYSA-N lets you match it in any structure database.
What grade and pack sizes are available for o-Tolidine hydrochoride, GR 99%+?
This listing is AR grade with ≥99% purity. Standard packs are 25 g, 100 g, 1 kg. Larger quantities and custom packing can be quoted on request.
Which documents come with o-Tolidine hydrochoride, GR 99%+?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship o-Tolidine hydrochoride, GR 99%+ to my country?
Yes. Because o-Tolidine hydrochoride, GR 99%+ is classed as hazardous (UN 3077), it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.
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MW
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CAS
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Formula
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MW
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