CAS Number: 1189732-52-2
Chemical Name: N-Acetyl Sulfapyridine-d4 (Major)
Molecular Formula: C13H9D4N3O3S
Molecular Weight: 295.35

CAS Number: 1189863-86-2
Chemical Name: Sulfapyridine-d4
Molecular Formula: C11H7D4N3O2S
Molecular Weight: 253.31