DL-组氨酸，游离碱，CAS 登记号 4998-57-6，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，下游主要用于医药中间体及原料药。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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主要涉及医药中间体及原料药。
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DL-Histidine, Free Base · CAS 4998-57-6 · C6H9N3O2. UNII QU6SDF3Q03.
| CAS Registry Number | 4998-57-6 |
|---|---|
| PubChem CID | 773 |
| Molecular formula | C6H9N3O2 |
| IUPAC name | 2-amino-3-(1H-imidazol-5-yl)propanoic acid |
| UNII (FDA) | QU6SDF3Q03 |
| Molecular Weight | 155.15 |
|---|---|
| XLogP3 | -3.2 |
| Hydrogen Bond Donor Count | 3 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 3 |
| Exact Mass | 155.069476538 |
| Monoisotopic Mass | 155.069476538 |
| Topological Polar Surface Area | 92 |
| Heavy Atom Count | 11 |
| Formal Charge | 0 |
| GHS notification summary | 100% (2 / 2) |
|---|
| GHS notification summary | 100% (2 / 2) |
|---|
This chemical does not meet GHS hazard criteria for 100% (2 of 2) of all reports.
Reported as not meeting GHS hazard criteria by 2 of 2 companies. For more detailed information, please visit ECHA C&L website.
DL-HISTIDINE; 4998-57-6; 2-amino-3-(1H-imidazol-5-yl)propanoic acid; Histidine, DL-; QU6SDF3Q03; DL-2-Amino-3-(4-imidazolyl)propionsaeure; DTXSID00901785; 2-azaniumyl-3-(1H-imidazol-5-yl)propanoate; RefChem:1083902; DTXCID40196658; 225-660-9; 2-amino-3-(1H-imidazol-4-yl)propanoic acid; H-DL-His-OH; L-Histidine Base; Histidine #; UNII-QU6SDF3Q03
CAS 4998-57-6; molecular formula C6H9N3O2; molecular weight — g/mol.
DL-HISTIDINE, 4998-57-6, 2-amino-3-(1H-imidazol-5-yl)propanoic acid, Histidine, DL-, QU6SDF3Q03, DL-2-Amino-3-(4-imidazolyl)propionsaeure.
100% of GHS notifications report no hazard classification (2 of 2).
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.