Compound Q&A
What regulatory guidelines apply to 2-Chloro-5-methylthieno[2,3-d]pyrimidine (CAS: 83259-31-8)?
Answer
![2-Chloro-5-methylthieno[2,3-d]pyrimidine](https://static.chemtradehub.com/structs/832/83259-31-8-3c0a.webp "2-Chloro-5-methylthieno[2,3-d]pyrimidine")
2-Chloro-5-methylthieno[2,3-d]pyrimidine (CAS: 83259-31-8) is classified under the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) as a hazardous substance due to its potential toxicity. In the European Union, it is regulated under the Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) regulation. Additionally, it is subject to the U.S. Environmental Protection Agency (EPA) and Food and Drug Administration (FDA) guidelines for handling and reporting of hazardous chemicals.
About
CAS No
83259-31-8
English Name
2-Chloro-5-methylthieno[2,3-d]pyrimidine
Molecular Formula
C7H5ClN2S
Molecular Weight
184.65 g/mol
SMILES
Cc1csc2nc(Cl)ncc12
InChIKey
MPEUVNBNQLDAON-UHFFFAOYSA-N
Last Updated: 2026-01-05 18:36
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