Cynor Laboratories

5-Amino-2,4,6-triiodoisophthalic acid (CAS: 35453-19-1, not 37441-19-1 which is the dichloride form) is a synthetic organic compound primarily used as a pharmaceutical intermediate for producing nonionic iodinated X-ray and CT scan contrast agents. 

2-Chloro-5-bromobenzoic acid, also known as 5-bromo-2-chlorobenzoic acid, is a white to off-white crystalline powder used as a building block in the synthesis of pharmaceuticals (such as dapagliflozin), agrochemicals, dyes, and other specialty chemicals. Its molecular formula is C7H4BrClO2, and it is a halogen-substituted benzoic acid derivative. The compound's structure features a chlorine atom at the 2-position and a bromine atom at the 5-position on the benzene ring, which imparts unique chemical properties and reactivity, making it valuable for further chemical modifications and organic synthesis. 

Benzo[b]naphtho[1,2-d]thiophene (CAS No. 205-43-6) is a chemical compound with the molecular formula C₁₆H₁₀S and a molecular weight of 234.32, often appearing as a white to light yellow powder or crystal. It is used in scientific research, including proteomics.