o-Tolidine, 98%

Name: o-Tolidine, 98%
Brand: Vaqora Chemicals
SKU: VQ-000664

About o-Tolidine, 98%

Listed under CAS 119-93-7, o-Tolidine is a biological stain available from Vaqora Chemicals (Synthesis grade) at a purity of 98%. Its molecular formula is C14H16N2 and its molecular weight is 212.29 g/mol. The IUPAC name is 4-(4-amino-3-methylphenyl)-2-methylaniline. Alternative names: 3,3'-Dimethylbenzidine and 4,4'-Bianisidine.

In its supplied form it is a grey powder. Key physical data: a melting point of 128-131 °C. Store sealed in a dry, well-ventilated location away from incompatible materials. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

It is commonly used for histology and cytology staining, microscopy, clinical laboratories and analytical determinations. Typical end-use sectors are academic and industrial research, diagnostics and biotechnology and textiles and dyeing.

Available in 100 g, 500 g, 5 kg and 25 kg packs, o-Tolidine is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Histology & cytology staining
Microscopy
Clinical laboratories
Analytical determinations

Industries

Specifications & identifiers

Chemical identifiers
Product name	o-Tolidine, 98%
Catalogue No.	VQ-000664
CAS Number	119-93-7
IUPAC name	4-(4-amino-3-methylphenyl)-2-methylaniline
Molecular formula	C₁₄H₁₆N₂
Molecular weight	212.29 g/mol
Exact mass	212.1313
Grade	Synthesis
Purity / assay	98%
HSN code	29214330
InChIKey	NUIURNJTPRWVAP-UHFFFAOYSA-N
SMILES	CC1=C(C=CC(=C1)C2=CC(=C(C=C2)N)C)N
PubChem CID	8413

Physical properties
Physical form	Powder
Appearance	Grey powder
Melting point	128-131 °C
LogP (XLogP3)	2.3
H-bond donors / acceptors	2 / 2
TPSA	52 Å²
UN number	UN 3077
Synonyms	3,3'-Dimethylbenzidine, 4,4'-Bianisidine, Orthotolidine, Diaminoditolyl, 2-Tolidine, Bianisidine, Diaminotolyl, 4,4'-Bi-o-toluidine, 3,3'-Tolidine, Fast Dark Blue Base R, 3,3'-Dimethyl-4,4'-biphenyldiamine, 3,3'-Dimethyl-4,4'-diaminobiphenyl

Safety & hazard information (GHS)

Harmful / irritant

Health hazard

Environmental hazard

Signal word: Danger

Hazard statements

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 is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 119-93-7

o-Tolidine

CAS: 119-93-7
Formula: C₁₄H₁₆N₂
MW: 212.29 g/mol

VQ-000662

AR

o-Tolidine, GR 99%+

CAS: 119-93-7
Formula: C₁₄H₁₆N₂
MW: 212.29 g/mol

VQ-000665

Frequently asked questions

What is the CAS number of o-Tolidine, 98%?

The CAS Registry Number of o-Tolidine, 98% is 119-93-7. It is also known as 3,3'-Dimethylbenzidine, 4,4'-Bianisidine, Orthotolidine.

What is the molecular formula and molecular weight of o-Tolidine, 98%?

o-Tolidine, 98% has the molecular formula C14H16N2 and a molecular weight of 212.29 g/mol. Its IUPAC name is 4-(4-amino-3-methylphenyl)-2-methylaniline.

Which grade and pack sizes of o-Tolidine, 98% can I order?

We supply o-Tolidine, 98% in Synthesis (98%) grade, in 100 g, 500 g, 5 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with o-Tolidine, 98%?

Yes. Every lot of o-Tolidine, 98% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can o-Tolidine, 98% be shipped internationally?

Yes. o-Tolidine, 98% is classified as hazardous (UN 3077), so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.