Pterin

Also known as: 2-Aminopteridin-4(1H)-one, 2-Amino-4-hydroxypteridine, 2-Amino-4(1H)-pteridinone, 2-Aminopteridin-4(3H)-one, 2-Amino-4-oxodihydropteridine, 2-Aminopteridin-4-ol, 2-Amino-1H-pteridin-4-one, 2-Amino-4(3H)-pteridinone, 2-Amino-4-oxo-3H-pteridine, 2-Amino-4-pteridinol, 4-Oxopterin, Pterine, Pteridoxamine, NSC 11540, NSC 18696

Pterin (CAS 2236-60-4) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C6H5N5O and a molecular weight of 163.13700 g/mol. Key properties include a melting point of 300 °C, a boiling point of 424.7ºC at 760mmHg, a density of 1.91g/cm3 and a flash point of 210.7ºC. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

2236-60-4

Jingsj CID

J-1412596-8

Molecular Formula

C₆H₅N₅O

Molecular Weight

163.13700 g/mol

Category

Organic Compounds

Last updated

8/21/2026