5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride
5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride (CAS 90217-02-0) is a tetrazolium salt with a molecular weight of 311.77 g/mol. It functions as a biochemical reagent, often utilised in luminescence-based detection systems. This compound is employed in various laboratory applications for sensitive and specific detection methods, contributing to research and development in biochemical and biological sciences.
- IUPAC
- 5-Cyano-2,3-bis(4-methylphenyl)-2H-tetrazolium chloride,CTC
- Synonyms
- C16H14ClN55-Cyano-2,3-bis(4-methylphenyl)-2H-tetrazolium chloride

Luminescent Detection Reagent
Used as a key component in assays that rely on luminescent or colorimetric changes to detect biological activity or the presence of specific analytes. Its properties facilitate sensitive detection in various biochemical studies.
Biochemical Research
Applied in research settings to study cellular processes, enzyme activities, or cell viability. Its use as a reagent supports fundamental investigations in biological and biochemical fields.
Staining and Dye Applications
Can be employed in applications involving stains and dyes, potentially for visualizing cellular structures or metabolic processes in microscopy or other diagnostic techniques.
| Molecular weight | 311.77 |
|---|---|
| Empirical formula | C16H14ClN5 |
| Assay | ≥85% (HPLC) |
| Storage temperature | 2-8°C |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride used for?
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This compound is primarily used as a luminescent detection reagent and in biochemical research, including applications as a stain or dye.
What are the CAS number and formula for 5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride?
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The CAS number is 90217-02-0 and the empirical formula is C16H14ClN5.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride with an assay of ≥85% (HPLC). We do not represent this product as USP, BP, or EP grade.
How should 5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride be handled safely?
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Handle with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves. Avoid breathing dust. In case of contact with eyes, rinse cautiously with water for several minutes. Ensure adequate ventilation. This compound is classified with GHS07 signal word and carries hazard statements H315, H319, and H335, indicating it may cause skin irritation, eye irritation, and respiratory irritation.
How is this chemical packed, shipped, and exported?
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5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride is stored at 2-8°C. Tech Serve Solutions is a specialist global supplier and exporter, adhering to all regulations for safe and compliant shipping of chemicals worldwide.
How can I request a sample or quote?
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To request a sample or obtain a quote for 5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride, please contact our sales team through the website or by phone.
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