6-Bromo-3-chloro-4-methylpyridazine

6-Bromo-3-chloro-4-methylpyridazine is associated with CAS 89283-91-0 and molecular formula C5H4BrClN2. PubChem resolves that CAS to a single compound, CID 83680570. Its official record and the page share SMILES CC1=CC(=NN=C1Cl)Br, InChI InChI=1S/C5H4BrClN2/c1-3-2-4(6)8-9-5(3)7/h2H,1H3, and InChIKey YNLBNEKHIODSNR-UHFFFAOYSA-N. The exact structural fields support the displayed title without introducing another isomer.

The six-membered pyridazine ring contains adjacent nitrogen atoms and three distinct substituent positions. Chlorine is fixed at position 3, the methyl group at position 4, and bromine at position 6. Formula C5H4BrClN2 counts the ring carbons plus the methyl carbon and contains one atom of each halogen. No additional component or stereochemical layer appears in the verified notation. Moving either halogen to another ring carbon would define a different connectivity from the one recorded by CID 83680570.

For an exact record match, submit the complete 6-Bromo-3-chloro-4-methylpyridazine name with CAS 89283-91-0. Include the structure drawing, CID 83680570, or InChIKey YNLBNEKHIODSNR-UHFFFAOYSA-N when positional detail needs to be checked. The connectivity assigns bromine and chlorine to different carbons, so interchanging those locants would not preserve the verified compound. Rlavie can compare all three locants and the two halogens against this page before responding to the identity-specific enquiry. The entry remains limited to this confirmed pyridazine substitution pattern and its linked identifiers.