2-Methylthiouracil

Name: 2-Methylthiouracil
Brand: Vaqora Chemicals
SKU: VQ-040114

About 2-Methylthiouracil

Vaqora Chemicals supplies 2-Methylthiouracil, a diazine derivative registered under CAS number 5751-20-2. With the molecular formula C5H6N2OS, it has a molar mass of 142.18 g/mol. The IUPAC name is 2-methylsulfanyl-1H-pyrimidin-6-one. It is also known as 2-(Methylthio)-1H-pyrimidin-4-one or 2-(methylthio)pyrimidin-4-ol.

Store in a tightly closed container in a cool, dry and well-ventilated place. It carries the GHS signal word “Danger” with 4 hazard statements. Review the Safety Data Sheet before use.

Key uses span organic synthesis and API synthesis. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies 2-Methylthiouracil in 100 mg, 250 mg, 1 g and 5 g packs, each shipped with a Certificate of Analysis (COA), and exports worldwide. SDS and detailed specification sheets can be requested with your quotation.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	2-Methylthiouracil
Catalogue No.	VQ-040114
CAS Number	5751-20-2
IUPAC name	2-methylsulfanyl-1H-pyrimidin-6-one
Molecular formula	C₅H₆N₂OS
Molecular weight	142.18 g/mol
Exact mass	142.0201
HSN code	2933
InChIKey	UYHSQVMHSFXUOA-UHFFFAOYSA-N
SMILES	CSC1=NC=CC(=O)N1
PubChem CID	79823

Physical properties
Physical form	Other
LogP (XLogP3)	0.5
H-bond donors / acceptors	1 / 3
TPSA	66.8 Å²
Synonyms	2-(Methylthio)-1H-pyrimidin-4-one, 2-(methylthio)pyrimidin-4-ol, 2-(methylthio)pyrimidin-4(3H)-one, 2-Methylthiopyrimidin-4-ol, 2-Methylthio-4-pyrimidinol, 2-Methylthio-4-pyrimidone, 2-(methylthio)-4-pyrimidinol, 2-(methylsulfanyl)pyrimidin-4-ol, 2-Methylthio-4-hydroxypyrimidine, 4(1H)-Pyrimidinone, 2-(methylthio)-, 2-Methylsulfanyl-3H-pyrimidin-4-one

Safety & hazard information (GHS)

Corrosive

Harmful / irritant

Signal word: Danger

Hazard statements

H302Harmful if swallowed
H315Causes skin irritation
H318Causes serious eye damage
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P354 + P338, P317, P319, P321, P330, P332 + 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 2-Methylthiouracil?

The CAS Registry Number of 2-Methylthiouracil is 5751-20-2. It is also known as 2-(Methylthio)-1H-pyrimidin-4-one, 2-(methylthio)pyrimidin-4-ol, 2-(methylthio)pyrimidin-4(3H)-one.

What is the molecular formula and molecular weight of 2-Methylthiouracil?

2-Methylthiouracil has the molecular formula C5H6N2OS and a molecular weight of 142.18 g/mol. Its IUPAC name is 2-methylsulfanyl-1H-pyrimidin-6-one.

Which grade and pack sizes of 2-Methylthiouracil can I order?

We supply 2-Methylthiouracil, in 100 mg, 250 mg, 1 g, 5 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 2-Methylthiouracil?

Yes. Every lot of 2-Methylthiouracil 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 2-Methylthiouracil be shipped internationally?

Yes. 2-Methylthiouracil 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.