Potassium indigotrisulfonate
Potassium indigotrisulfonate (CAS 67627-18-3), molecular formula C16H7K3N2O11S3, is a high-purity chemical supplied by Tech Serve Solutions for cell biology applications, to pharmacopoeia specification (USP, BP, EP). Every batch is tested and ships with a Certificate of Analysis; MSDS and technical data sheets are available on request. Tech Serve Solutions has supplied laboratory reagents, fine chemicals and pharmaceutical intermediates worldwide since 1998.
- IUPAC
- 5,5′,7-Indigotrisulfonic acid tripotassium salt,Indigo-5,5′,7-trisulfonic acid tripotassium salt,Potassium indigotrisulfonate,Tripotassium indigo-5,5′,7-trisulfonate,tri-Potassium indigo-5,5′,7-trisulfonate

| Molecular weight | 616.72 |
|---|---|
| Empirical formula | C16H7K3N2O11S3 |
| Application | Ozone-scavenging reagent that reacts rapidly with ozone.1 Used in colorimetric method of measurement of atmospheric ozone2 and for measuring residual aqueous ozone by gas diffusion flow injection analysis.3 |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Absorption | λmax 600 nm |
|---|
Documentation
Supplied to USP, BP and EP standards. Every batch ships with a Certificate of Analysis (assay, identity, purity); MSDS 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 Potassium indigotrisulfonate?
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Potassium indigotrisulfonate (CAS 67627-18-3), molecular formula C16H7K3N2O11S3, is a high-purity chemical supplied by Tech Serve Solutions for cell biology applications, to USP, BP and EP standards.
What grades of Potassium indigotrisulfonate does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Potassium indigotrisulfonate in USP, BP, EP and reagent/AR grades. Custom specifications for nutraceutical or specialty pharmaceutical applications are available — contact our technical sales team.
What is the CAS number and molecular formula of Potassium indigotrisulfonate?
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Potassium indigotrisulfonate has CAS number 67627-18-3 and molecular formula C16H7K3N2O11S3. Full specifications appear in the table above and in the Certificate of Analysis.
What is the typical minimum order quantity and lead time for Potassium indigotrisulfonate?
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Sample quantities are available for technical evaluation; bulk MOQ depends on grade and packaging. In-stock material typically ships in 7–10 working days; custom-spec orders take 3–4 weeks. Tech Serve Solutions ships worldwide with full export documentation.
Do you provide a Certificate of Analysis (CoA) with each shipment?
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Yes. Every batch of Potassium indigotrisulfonate ships with a Certificate of Analysis covering assay, identity and purity tests, plus pharmacopoeia conformance where applicable. MSDS and TDS documents are available on request before order placement.
How should Potassium indigotrisulfonate be stored?
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Store Potassium indigotrisulfonate in its original sealed container in a cool, dry place away from direct sunlight and incompatible materials, in line with the storage guidance on the Safety Data Sheet. Reseal between dispensings.
What is Potassium indigotrisulfonate used for?
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Potassium indigotrisulfonate is used in cell biology applications across pharmaceutical, research and industrial settings. Our technical team can advise on suitability for your specific process.
How do I request a quote for Potassium indigotrisulfonate?
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Request a quote with your required grade, quantity and destination via https://www.techservesolutions.in/contact or email info@techservesolutions.in. We respond with specifications, a Certificate of Analysis and pricing.
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