3,3′,5,5′-Tetramethylbenzidine, 99%

Name: 3,3′,5,5′-Tetramethylbenzidine, 99%
Brand: Vaqora Chemicals
SKU: VQ-009279

About 3,3′,5,5′-Tetramethylbenzidine, 99%

3,3′,5,5′-Tetramethylbenzidine (CAS 54827-17-7) is an amine building block offered by Vaqora Chemicals in Puriss grade with a typical assay of 99%. The compound has the formula C16H20N2, corresponding to a molecular weight of 240.34 g/mol. Systematically, it is named 4-(4-amino-3,5-dimethylphenyl)-2,6-dimethylaniline. Common synonyms include BM blue and Sure Blue TMB.

It is supplied as a white to beige to yellow powder. Key physical data: a melting point of 168-171 °C. Store in a tightly closed container in a cool, dry and well-ventilated place. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

It is commonly used for biological staining, protein and peptide research, paints, coatings and inks and diagnostic assays. It is used across pharmaceutical manufacturing, academic and industrial research and diagnostics and biotechnology.

Standard pack sizes are 100 mg, 1 g, 5 g and 25 g, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Biological staining
Protein & peptide research
Paints, coatings & inks
Diagnostic assays

Industries

Specifications & identifiers

Chemical identifiers
Product name	3,3′,5,5′-Tetramethylbenzidine, 99%
Catalogue No.	VQ-009279
CAS Number	54827-17-7
IUPAC name	4-(4-amino-3,5-dimethylphenyl)-2,6-dimethylaniline
Molecular formula	C₁₆H₂₀N₂
Molecular weight	240.34 g/mol
Exact mass	240.1626
Grade	Puriss
Purity / assay	99%
HSN code	29215990
InChIKey	UAIUNKRWKOVEES-UHFFFAOYSA-N
SMILES	CC1=CC(=CC(=C1N)C)C2=CC(=C(C(=C2)C)N)C
PubChem CID	41206

Physical properties
Physical form	Powder
Appearance	White to beige to yellow powder
Melting point	168-171 °C
LogP (XLogP3)	3.6
H-bond donors / acceptors	2 / 2
TPSA	52 Å²
Synonyms	BM blue, Sure Blue TMB, TMB Blotting Plus, TMB substrate, TMB, 3,3',5,5'-Tetramethyl-[1,1'-biphenyl]-4,4'-diamine, 3,5,3',5'-Tetramethylbenzidine, 3,3',5,5'-Tetramethyl-(1,1'-biphenyl)-4,4'-diamine, (1,1'-Biphenyl)-4,4'-diamine, 3,3',5,5'-tetramethyl-, 3,3',5,5'-Tetramethyl(1,1'-biphenyl)-4,4'-diamine, [1,1'-Biphenyl]-4,4'-diamine, 3,3',5,5'-tetramethyl-, 3,3',5,5'-Tetramethyl[1,1'-biphenyl]-4,4'-diamine

Safety & hazard information (GHS)

Harmful / irritant

Health hazard

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H341Suspected of causing genetic defects

Precautionary statements: P203, P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P318, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P403 + P233, 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 54827-17-7

AR

3,3′,5,5′-Tetramethylbenzidine, AR ≥96.0%

CAS: 54827-17-7
Formula: C₁₆H₂₀N₂
MW: 240.34 g/mol

VQ-045725

Cell Culture

3,3′,5,5′-Tetramethylbenzidine, cell culture tested

CAS: 54827-17-7
Formula: C₁₆H₂₀N₂
MW: 240.34 g/mol

VQ-046447

Frequently asked questions

What is the CAS number of 3,3′,5,5′-Tetramethylbenzidine, 99%?

The CAS Registry Number of 3,3′,5,5′-Tetramethylbenzidine, 99% is 54827-17-7. It is also known as BM blue, Sure Blue TMB, TMB Blotting Plus.

What is the molecular formula and molecular weight of 3,3′,5,5′-Tetramethylbenzidine, 99%?

3,3′,5,5′-Tetramethylbenzidine, 99% has the molecular formula C16H20N2 and a molecular weight of 240.34 g/mol. Its IUPAC name is 4-(4-amino-3,5-dimethylphenyl)-2,6-dimethylaniline.

Which grade and pack sizes of 3,3′,5,5′-Tetramethylbenzidine, 99% can I order?

We supply 3,3′,5,5′-Tetramethylbenzidine, 99% in Puriss (99%) grade, in 100 mg, 1 g, 5 g, 25 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 3,3′,5,5′-Tetramethylbenzidine, 99%?

Yes. Every lot of 3,3′,5,5′-Tetramethylbenzidine, 99% 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 3,3′,5,5′-Tetramethylbenzidine, 99% be shipped internationally?

Yes. 3,3′,5,5′-Tetramethylbenzidine, 99% is classified as hazardous, 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.