5-Methoxy-2,4-pyrimidinediol

5-甲氧基-2,4-二羟基嘧啶

Also known as: 5-Methoxyuracil, 2,4-Dihydroxy-5-methoxypyrimidine, 5-Methoxypyrimidine-2,4(1H,3H)-dione, 5-Methoxy-1H-pyrimidine-2,4-dione, 5-Methoxy-2,4(1H,3H)-pyrimidinedione, Fluorouracil EP Impurity D, NSC 55452, mo5Ura

5-Methoxy-2,4-pyrimidinediol (CAS 6623-81-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H6N2O3 and a molecular weight of 142.113 g/mol. It is also known as 5-Methoxyuracil, 2,4-Dihydroxy-5-methoxypyrimidine and 5-Methoxypyrimidine-2,4(1H,3H)-dione. Key properties include a melting point of 344 °C, a boiling point of 508.5ºC at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 207.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

6623-81-0

Jingsj CID

J-12703-3

Molecular Formula

C₅H₆N₂O₃

Chinese Name

5-甲氧基-2,4-二羟基嘧啶

Molecular Weight

142.113 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026