5-Methyl-1H-1,2,4-triazole-3(2H)-thione

Name: 5-Methyl-1H-1,2,4-triazole-3(2H)-thione
Brand: Vaqora Chemicals
SKU: VQ-039849

About 5-Methyl-1H-1,2,4-triazole-3(2H)-thione

Listed under CAS 7271-44-5, 5-Methyl-1H-1,2,4-triazole-3(2H)-thione is an API impurity reference standard available from Vaqora Chemicals. With the molecular formula C3H5N3S, it has a molar mass of 115.16 g/mol. Systematically, it is named 5-methyl-1,2-dihydro-1,2,4-triazole-3-thione. It is also known as 5-Mdtt or 5-methyl-4H-1,2,4-triazole-3-thiol.

The product is provided as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

Pharmaceutical QC and development laboratories use this impurity standard of the parent drug substance to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, 5-Methyl-1H-1,2,4-triazole-3(2H)-thione is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Specifications & identifiers

Chemical identifiers
Product name	5-Methyl-1H-1,2,4-triazole-3(2H)-thione
Catalogue No.	VQ-039849
CAS Number	7271-44-5
IUPAC name	5-methyl-1,2-dihydro-1,2,4-triazole-3-thione
Molecular formula	C₃H₅N₃S
Molecular weight	115.16 g/mol
Exact mass	115.0204
Grade	Reference Standard
HSN code	38229090
InChIKey	OUZCWDMJTKYHCA-UHFFFAOYSA-N
SMILES	CC1=NC(=S)NN1
PubChem CID	1538728

Physical properties
Physical form	Solid
LogP (XLogP3)	-0.2
H-bond donors / acceptors	2 / 1
TPSA	68.5 Å²
Synonyms	5-Methyl-2,4-dihydro-3H-1,2,4-triazole-3-thione, 5-Mdtt, 5-methyl-4H-1,2,4-triazole-3-thiol, 3-methyl-1H-1,2,4-triazole-5-thiol, 3-Methyl-1,2,4-triazole-5-thione, 5-methyl-1,2-dihydro-3h-1,2,4-triazole-3-thione, 5-methyl-2,3-dihydro-1H-1,2,4-triazole-3-thione, 3-Methyl-1H(4H)-1,2,4-triazole-5-thione, 3-Mercapto-5-methyl-1,2,4-triazole, 5-methyl-1H-1,2,4-triazole-3-thiol, 3H-1,2,4-Triazole-3-thione, 1,2-dihydro-5-methyl-

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H312Harmful in contact with skin
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 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-Methyl-1H-1,2,4-triazole-3(2H)-thione?

The CAS Registry Number of 5-Methyl-1H-1,2,4-triazole-3(2H)-thione is 7271-44-5. It is also known as 5-Methyl-2,4-dihydro-3H-1,2,4-triazole-3-thione, 5-Mdtt, 5-methyl-4H-1,2,4-triazole-3-thiol.

What is the molecular formula and molecular weight of 5-Methyl-1H-1,2,4-triazole-3(2H)-thione?

5-Methyl-1H-1,2,4-triazole-3(2H)-thione has the molecular formula C3H5N3S and a molecular weight of 115.16 g/mol. Its IUPAC name is 5-methyl-1,2-dihydro-1,2,4-triazole-3-thione.

Which grade and pack sizes of 5-Methyl-1H-1,2,4-triazole-3(2H)-thione can I order?

We supply 5-Methyl-1H-1,2,4-triazole-3(2H)-thione 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 5-Methyl-1H-1,2,4-triazole-3(2H)-thione?

Yes. Every lot of 5-Methyl-1H-1,2,4-triazole-3(2H)-thione 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-Methyl-1H-1,2,4-triazole-3(2H)-thione be shipped internationally?

Yes. 5-Methyl-1H-1,2,4-triazole-3(2H)-thione 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.