5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride,… 90217-02-0

About 5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride, ≥85% (HPLC)

5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride is a biological stain (Puriss grade) carrying the CAS registry number 90217-02-0 at a purity of 85%. Formula C16H14ClN5, molecular weight 311.77 g/mol. Its systematic (IUPAC) name is 2,3-bis(4-methylphenyl)tetrazol-2-ium-5-carbonitrile chloride. Alternative names: CTC and 5-Cyano-2,3-di-p-tolyltetrazolium chloride.

The product is provided as a solid. Literature values give a melting point of 225 °C. Keep the material at 2–8 °C and protect it from moisture. It carries the GHS signal word “Warning” with 3 hazard statements. Review the Safety Data Sheet before use.

It is commonly used for histology and cytology staining, microscopy, clinical laboratories and biological staining. It is used across academic and industrial research, diagnostics and biotechnology and textiles and dyeing.

We offer 5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride in 10 mg, 50 mg and 1 g packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Histology & cytology staining
Microscopy
Clinical laboratories
Biological staining

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride, ≥85% (HPLC)
Catalogue No.	VQ-000444
CAS Number	90217-02-0
IUPAC name	2,3-bis(4-methylphenyl)tetrazol-2-ium-5-carbonitrile chloride
Molecular formula	C₁₆H₁₄ClN₅
Molecular weight	311.77 g/mol
Exact mass	311.0938
Grade	Puriss
Purity / assay	85%
HSN code	2933
InChIKey	SSJZAXOTLCJNLF-UHFFFAOYSA-M
SMILES	CC1=CC=C(C=C1)N2N=C(N=[N+]2C3=CC=C(C=C3)C)C#N.[Cl-]
PubChem CID	2762687

Physical properties
Physical form	Solid
Appearance	Solid
Melting point	225 °C
H-bond donors / acceptors	0 / 4
TPSA	58.4 Å²
Storage	2–8 °C
Synonyms	5-Cyano-2,3-bis(4-methylphenyl)-2H-tetrazolium chloride, CTC, 5-Cyano-2,3-di-p-tolyltetrazolium chloride, 5-Cyano-2,3-ditolyltetrazolium chloride, 5-CTC cpd, 5-cyano-2,3-tolyl-tetrazolium chloride, 5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride, 2H-Tetrazolium, 5-cyano-2,3-bis(4-methylphenyl)-, chloride, 5-Cyano-2,3-di-p-tolyltetrazolium Chloride (>85%), 5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride (CTC), 5-Cyano-2,3-di-p-tolyl-2H-tetrazol-3-ium Chloride

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, 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

Frequently asked questions

What is the CAS number of 5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride, ≥85% (HPLC)?

The CAS Registry Number of 5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride, ≥85% (HPLC) is 90217-02-0. It is also known as 5-Cyano-2,3-bis(4-methylphenyl)-2H-tetrazolium chloride, CTC, 5-Cyano-2,3-di-p-tolyltetrazolium chloride.

What is the molecular formula and molecular weight of 5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride, ≥85% (HPLC)?

5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride, ≥85% (HPLC) has the molecular formula C16H14ClN5 and a molecular weight of 311.77 g/mol. Its IUPAC name is 2,3-bis(4-methylphenyl)tetrazol-2-ium-5-carbonitrile chloride.

Which grade and pack sizes of 5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride, ≥85% (HPLC) can I order?

We supply 5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride, ≥85% (HPLC) in Puriss (85%) grade, in 10 mg, 50 mg, 1 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride, ≥85% (HPLC)?

Yes. Every lot of 5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride, ≥85% (HPLC) 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 5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride, ≥85% (HPLC) be shipped internationally?

Yes. 5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride, ≥85% (HPLC) 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.

How should 5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride, ≥85% (HPLC) be stored?

2–8 °C. Keep the container tightly closed and refer to the SDS for full handling guidance.