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Pharmacopeial Impurities (EP / USP / BP)Reference StandardAvailable on request

Methimazole EP Impurity C

Synonyms: Thiamazole EP Impurity C · Thiamazole - Impurity C (Freebase) · 1-Methyl-2-(methylthio)imidazole · 1-methyl-2-(methylsulfanyl)-1H-imidazole

CAS No.14486-52-3
FormulaC5H8N2S
Mol. weight128.20
Catalogue No.VQ-023876
PurityReference Standard
HSN38229090

Methimazole EP Impurity C (CAS 14486-52-3) – Thiamazole impurity standard. C5H8N2S, MW 128.2. Request a quote: COA, bulk packs and worldwide export.

Pack sizesPrice on quotation · bulk available
10 mg
25 mg
50 mg
100 mg
Bulk / custom pack · kg to MT
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Batch COA with every lot
16-section GHS SDS
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DG-compliant packing

About Methimazole EP Impurity C

Methimazole EP Impurity C is a pharmacopeial impurity of Thiamazole carrying the CAS registry number 14486-52-3. With the molecular formula C5H8N2S, it has a molar mass of 128.2 g/mol. The IUPAC name is 1-methyl-2-methylsulfanylimidazole. Alternative names: Thiamazole EP Impurity C and Thiamazole - Impurity C (Freebase).

The product is provided as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. It carries the GHS signal word “Warning” with 3 hazard statements. Review the Safety Data Sheet before use.

This Thiamazole impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

We offer Methimazole EP Impurity C in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

  • Pharmacopeial method verification
  • Impurity profiling
  • QC release testing
  • ANDA / DMF filings

Industries

Related to Thiamazole

View every impurity, metabolite and intermediate we list for Thiamazole.

Thiamazole impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product nameMethimazole EP Impurity C
Catalogue No.VQ-023876
CAS Number14486-52-3
IUPAC name1-methyl-2-methylsulfanylimidazole
Molecular formulaC5H8N2S
Molecular weight128.2 g/mol
Exact mass128.0408
GradeReference Standard
HSN code38229090
InChIKeyLKIVEIAXFZBGMO-UHFFFAOYSA-N
SMILESCN1C=CN=C1SC
PubChem CID581856
Physical properties
Physical formSolid
LogP (XLogP3)0.9
H-bond donors / acceptors0 / 2
TPSA43.1 Ų
SynonymsThiamazole EP Impurity C, Thiamazole - Impurity C (Freebase), 1-Methyl-2-(methylthio)imidazole, 1-methyl-2-(methylsulfanyl)-1H-imidazole, 2-Methylthio-3-methylimidazole, Methimazole methyl sulfide, Thiamazole impurity C, 1H-Imidazole, 1-methyl-2-(methylthio)-, 1-Methyl-2-(methylsulphanyl)-1H-imidazole, 1-methyl-2-methylsulfanyl-imidazole, S-Methylmethimiazole, Methimazole Impurity C

Safety & hazard information (GHS)

GHS07 Harmful / irritant
Harmful / irritant
GHS08 Health hazard
Health hazard

Signal word: Warning

Hazard statements

  • H302Harmful if swallowed
  • H317May cause an allergic skin reaction
  • H319Causes serious eye irritation

Precautionary statements: P203, P261, P264, P264 + P265, P270, P272, P280, P301 + P317, P302 + P352, P305 + P351 + P338, P318, P321, P330, P333 + P317, P337 + P317, P362 + P364, 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

Frequently asked questions

What is the CAS number of Methimazole EP Impurity C?

The CAS Registry Number of Methimazole EP Impurity C is 14486-52-3. It is also known as Thiamazole EP Impurity C, Thiamazole - Impurity C (Freebase), 1-Methyl-2-(methylthio)imidazole.

What is the molecular formula and molecular weight of Methimazole EP Impurity C?

Methimazole EP Impurity C has the molecular formula C5H8N2S and a molecular weight of 128.2 g/mol. Its IUPAC name is 1-methyl-2-methylsulfanylimidazole.

What is Methimazole EP Impurity C used for?

Methimazole EP Impurity C is supplied as a characterised reference material related to Thiamazole. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Methimazole EP Impurity C can I order?

We supply Methimazole EP Impurity C in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Methimazole EP Impurity C?

Yes. Every lot of Methimazole EP Impurity C 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 Methimazole EP Impurity C be shipped internationally?

Yes. Methimazole EP Impurity C 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.

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