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Indicators, Chelating Agents & Test Papers

Bismuthiol-II

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Buy Bismuthiol-II (CAS 6336-51-2) from Zemixal. Request a quote with price, lead time and documents. Quotes within one business day.

Pack sizes
Bismuthiol-II chemical structure
CAS number6336-51-2
FormulaC8H5KN2S3
Molar mass264.4 g/mol
Physical formPowder
HS code29349900
InChIKeyQSKDCVGFAPHSHX-UHFFFAOYSA-M
IUPAC namepotassium 4-phenyl-5-sulfanylidene-1,3,4-thiadiazole-2-thiolate

About Bismuthiol-II

Bismuthiol-II sits in our indicators, Chelating Agents & Test Papers section and ships worldwide from stock or short lead time. For your records, the material is defined by CAS 6336-51-2, formula C8H5KN2S3 and molar mass 264.4 g/mol. Expect powder.

Common uses in the lab and plant

  • Titration end-point detection
  • pH determination
  • Analytical testing
  • Pharmaceutical synthesis

Handling and storage

It carries the GHS signal word Warning (H302, H315, H319 and H332), so wear gloves and eye protection and work with good ventilation.

Standard pack sizes are 10 g, 100 g and 1 kg, and custom quantities are quoted on request. You receive a batch certificate of analysis and a 16-section SDS with each order. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Typical uses

  • Titration end-point detection
  • pH determination
  • Analytical testing
  • Pharmaceutical synthesis

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of Bismuthiol-II
Product nameBismuthiol-II
Catalogue numberZX-000322
CAS number6336-51-2
IUPAC namepotassium 4-phenyl-5-sulfanylidene-1,3,4-thiadiazole-2-thiolate
Molecular formulaC8H5KN2S3
Molar mass264.4 g/mol
Exact mass263.9252
Physical formPowder
AppearancePowder
H-bond donors / acceptors0 / 4
Topological polar surface area74 Ų
HS code29349900
InChIKeyQSKDCVGFAPHSHX-UHFFFAOYSA-M
SMILESC1=CC=C(C=C1)N2C(=S)SC(=N2)[S-].[K+]
PubChem CID2775614
Synonyms5-Mercapto-3-phenyl-1,3,4-thiodiazole-2(3H)-thione potassium salt, 1,3,4-Thiadiazolidine-2,5-dithione, 3-phenyl-, potassium salt, 5-Mercapto-3-phenyl-1,3,4-thiadiazole-2(3H)-thione, potassium salt, potassium 4-phenyl-5-thioxo-4,5-dihydro-1,3,4-thiadiazole-2-thiolate, 5-Mercapto-3-phenyl-1,3,4-thiadiazole-2(3H)thione potassium salt, potassium (4-phenyl-5-sulfanylidene-4,5-dihydro-1,3,4-thiadiazol-2-yl)sulfanide, Bizmuthiol II, 2,5-Dimercapto-4-phenyl-1,3,4-thiadiazole potassium salt, C8H5KN2S3, 3-phenyl-5-sulfanyl-1,3,4-thiadiazole-2-thione, 5-Mercapto-3-phenyl-2H-1,3,4-thiadiazole-2-thione

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • H302Harmful if swallowed
  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H332Harmful if inhaled
  • H335May cause respiratory irritation

Precautionary statements P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P317, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Bismuthiol-II
10 gQuoted on request
100 gQuoted on request
1 kgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Bismuthiol-II

Which CAS number identifies Bismuthiol-II?
Bismuthiol-II is registered under CAS 6336-51-2. You may also see it listed as 5-Mercapto-3-phenyl-1,3,4-thiodiazole-2(3H)-thione potassium salt, 1,3,4-Thiadiazolidine-2,5-dithione, 3-phenyl-, potassium salt, 5-Mercapto-3-phenyl-1,3,4-thiadiazole-2(3H)-thione, potassium salt. Our catalogue number for this item is ZX-000322.
What are the formula and molar mass of Bismuthiol-II?
For Bismuthiol-II, its formula is C8H5KN2S3 and its molar mass is 264.4 g/mol. The systematic (IUPAC) name is potassium 4-phenyl-5-sulfanylidene-1,3,4-thiadiazole-2-thiolate. InChIKey QSKDCVGFAPHSHX-UHFFFAOYSA-M lets you match it in any structure database.
What grade and pack sizes are available for Bismuthiol-II?
The grade and assay are confirmed on the quotation and the batch COA. Standard packs are 10 g, 100 g, 1 kg. Larger quantities and custom packing can be quoted on request.
Which documents come with Bismuthiol-II?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Bismuthiol-II to my country?
Yes. Because Bismuthiol-II is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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