2,4-Dichloro-5,7-dihydrothieno(3,4-d)pyrimidi… 74901-71-6

Name: 2,4-Dichloro-5,7-dihydrothieno(3,4-d)pyrimidine
Brand: Vaqora Chemicals
SKU: VQ-050569

About 2,4-Dichloro-5,7-dihydrothieno(3,4-d)pyrimidine

Listed under CAS 74901-71-6, 2,4-Dichloro-5,7-dihydrothieno(3,4-d)pyrimidine is a diazine derivative available from Vaqora Chemicals. With the molecular formula C6H4Cl2N2S, it has a molar mass of 207.08 g/mol.

Store sealed in a dry, well-ventilated location away from incompatible materials. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

Typical applications include organic synthesis and API synthesis. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

We offer 2,4-Dichloro-5,7-dihydrothieno(3,4-d)pyrimidine in 100 mg, 250 mg, 1 g and 5 g packs with a batch-specific COA, and ship to customers worldwide. A Safety Data Sheet (SDS) and technical specifications are available on request. Larger quantities and custom packaging are available. Request a quote for pricing and lead time. Export shipments are packed to international standards with the required transport documentation.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	2,4-Dichloro-5,7-dihydrothieno(3,4-d)pyrimidine
Catalogue No.	VQ-050569
CAS Number	74901-71-6
IUPAC name	2,4-dichloro-5,7-dihydrothieno[3,4-d]pyrimidine
Molecular formula	C₆H₄Cl₂N₂S
Molecular weight	207.08 g/mol
Exact mass	205.9472
HSN code	2933
InChIKey	YSADLUWHNVZEJK-UHFFFAOYSA-N
SMILES	C1C2=C(CS1)N=C(N=C2Cl)Cl
PubChem CID	72207289

Physical properties
Physical form	Other
LogP (XLogP3)	2.2
H-bond donors / acceptors	0 / 3
TPSA	51.1 Å²

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302+H312+H332Harmful if swallowed, in contact with skin or if inhaled
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
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 2,4-Dichloro-5,7-dihydrothieno(3,4-d)pyrimidine?

The CAS Registry Number of 2,4-Dichloro-5,7-dihydrothieno(3,4-d)pyrimidine is 74901-71-6.

What is the molecular formula and molecular weight of 2,4-Dichloro-5,7-dihydrothieno(3,4-d)pyrimidine?

2,4-Dichloro-5,7-dihydrothieno(3,4-d)pyrimidine has the molecular formula C6H4Cl2N2S and a molecular weight of 207.08 g/mol. Its IUPAC name is 2,4-dichloro-5,7-dihydrothieno[3,4-d]pyrimidine.

Which grade and pack sizes of 2,4-Dichloro-5,7-dihydrothieno(3,4-d)pyrimidine can I order?

We supply 2,4-Dichloro-5,7-dihydrothieno(3,4-d)pyrimidine, 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 2,4-Dichloro-5,7-dihydrothieno(3,4-d)pyrimidine?

Yes. Every lot of 2,4-Dichloro-5,7-dihydrothieno(3,4-d)pyrimidine 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 2,4-Dichloro-5,7-dihydrothieno(3,4-d)pyrimidine be shipped internationally?

Yes. 2,4-Dichloro-5,7-dihydrothieno(3,4-d)pyrimidine 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.