6-Bromoimidazo(1,2-a)pyrazine

6-Bromoimidazo(1,2-a)pyrazine is the substance associated with CAS 912773-24-1 and formula C6H4BrN3. PubChem returns CID 28875892 for this identity. Its connection table is expressed as C1=CN2C=C(N=CC2=N1)Br, and the corresponding InChIKey is KKMWDXNBIKMCEH-UHFFFAOYSA-N. The identifiers tie the bromo-substituted fused system to one public structure record.

The parent framework joins an imidazole portion to pyrazine with the 1,2-a fusion orientation stated in the name. Bromine occupies position 6 of that numbered system. Square brackets and parentheses are sometimes chosen differently when the fusion descriptor is typed, but the sequence 1,2-a and the bromo locant must remain unchanged. This compositional check complements fusion notation when two fused nitrogen heterocycles have similar short names. C6H4BrN3 agrees with the single bromine and three nitrogen atoms encoded in the connected graph; no disconnected counterion is present.

During structure review, compare the ring closure pattern in the SMILES with CID 28875892 and then confirm CAS 912773-24-1. A message to Rlavie should retain 6-Bromoimidazo(1,2-a)pyrazine in full, along with the requested quantity and any authoritative drawing. KKMWDXNBIKMCEH-UHFFFAOYSA-N helps resolve formatting differences without treating another imidazopyrazine fusion as equivalent. The page describes only the structure fixed by those identifiers and the stated bromine position.