2,4(1H,3H)-嘧啶二酮，5-甲氧基-，CAS 登记号 6623-81-0，由济南圣和化工有限公司现货供应，可提供纯度 按批次COA提供(不公开发布) 的规格，下游主要用于有机化学品。支持样品与小批量试用，批量价格请联系我们获取，验收以批次 COA 为准。
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2,4(1H,3H)-Pyrimidinedione, 5-methoxy- · CAS 6623-81-0 · C5H6N2O3. UNII 79DD14XTQR.
| CAS Registry Number | 6623-81-0 |
|---|---|
| PubChem CID | 81100 |
| Molecular formula | C5H6N2O3 |
| IUPAC name | 5-methoxy-1H-pyrimidine-2,4-dione |
| UNII (FDA) | 79DD14XTQR |
| Molecular Weight | 142.11 |
|---|---|
| XLogP3 | -0.8 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 3 |
| Rotatable Bond Count | 1 |
| Exact Mass | 142.03784206 |
| Monoisotopic Mass | 142.03784206 |
| Topological Polar Surface Area | 67.4 |
| Heavy Atom Count | 10 |
| Formal Charge | 0 |
| Reported hazard statements | H315 (100%), H319 (100%) |
|---|
H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
6623-81-0; 5-Methoxyuracil; 5-methoxypyrimidine-2,4-diol; 5-methoxypyrimidine-2,4(1H,3H)-dione; UNII-79DD14XTQR; 79DD14XTQR; NSC 55452; EINECS 229-580-5; NSC-55452; URACIL, 5-METHOXY-; FLUOROURACIL IMPURITY D [EP IMPURITY]; DTXSID20216424; FLUOROURACIL IMPURITY D (EP IMPURITY); RefChem:103080; DTXCID20138915; 229-580-5
CAS 6623-81-0; molecular formula C5H6N2O3; molecular weight — g/mol.
6623-81-0, 5-Methoxyuracil, 5-methoxypyrimidine-2,4-diol, 5-methoxypyrimidine-2,4(1H,3H)-dione, UNII-79DD14XTQR, 79DD14XTQR.
Hazard statements reported: H315, H319.
Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.