5-Bromoisothiazolo[5,4-b]pyridin-3-amine

5-Bromoisothiazolo[5,4-b]pyridin-3-amine is the compound identified by CAS Registry Number 1643590-09-3 and molecular formula C6H4BrN3S. PubChem maps this CAS number to CID 122129751. Its verified connectivity is represented by SMILES C1=C(C=NC2=C1C(=NS2)N)Br and InChIKey YIQNIADFTCRHTE-UHFFFAOYSA-N. These values form a consistent identity set for the exact fused-ring record described here.

The name specifies an isothiazolo[5,4-b]pyridine fused-ring system bearing bromine at position 5 and an amino group at position 3. The alternative wording beginning with 3-amino-5-bromo describes the same verified locants, while the [5,4-b] fusion descriptor remains essential. Dropping or changing any of those position markers could identify another structure. The CAS number, CID, formula, SMILES, and InChIKey preserve the exact sulfur- and nitrogen-containing connectivity.

For a quotation enquiry, provide Rlavie with the complete verified name, CAS 1643590-09-3, the requested quantity, and any structure file controlling the request. For a custom synthesis discussion, cite PubChem CID 122129751 or the InChIKey so the ring fusion and substituent positions can be compared directly. Rlavie can review the submitted target against the public structure record before giving request-specific information. This page establishes chemical identity and connectivity only and does not establish commercial conditions.