3,6-Dibromopyridazine

3,6-Dibromopyridazine corresponds to CAS 17973-86-3 and molecular formula C4H2Br2N2. PubChem assigns this identity CID 248852, SMILES C1=CC(=NN=C1Br)Br, and InChIKey VQAFMTSSCUETHA-UHFFFAOYSA-N. The former catalog spelling “3,6-dibromopyridazide” also appears in PubChem’s synonym evidence, while the preferred heading follows the official Title.

The six-membered pyridazine framework contains four carbon atoms and two adjacent nitrogen atoms. Bromine is attached at positions 3 and 6, leaving hydrogens on the two remaining ring carbons and accounting for formula C4H2Br2N2. The encoded bond sequence places both bromines directly on the heteroaromatic ring; neither is represented as a separate component. PubChem’s standardized graph contains no counterion and no stereochemical layer. Because several dibrominated diazines can share the same elemental count, the adjacent nitrogen arrangement, both locants, and the explicit SMILES jointly define this entry. The corrected final word “pyridazine” describes that ring, whereas the older “pyridazide” text is retained only as an identity cross-reference.

For an Rlavie inquiry, cite CAS 17973-86-3, CID 248852, and the preferred name. Add the requested quantity and request-specific information needed for an identity review. If the request begins with a drawing, attach a MOL or SDF structure file and compare its connectivity with the recorded SMILES. InChIKey VQAFMTSSCUETHA-UHFFFAOYSA-N supplies another exact checkpoint before the message is associated with this catalog record.