4,5-二甲基噻唑，CAS 登记号 3581-91-7，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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4,5-Dimethylthiazole · CAS 3581-91-7 · C5H7NS. UNII U3RP5I088G. Boiling Point: 157.00 to 159.00 °C. @ 760.00 mm Hg; Boiling Point: 158 °C (742 mm Hg); Melting Point: 83 - 84 °C.
| CAS Registry Number | 3581-91-7 |
|---|---|
| PubChem CID | 62510 |
| Molecular formula | C5H7NS |
| IUPAC name | 4,5-dimethyl-1,3-thiazole |
| UNII (FDA) | U3RP5I088G |
| FEMA number | 3274 |
| JECFA number | 1035 |
| Molecular Weight | 113.18 |
|---|---|
| XLogP3 | 1.8 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 0 |
| Exact Mass | 113.02992040 |
| Monoisotopic Mass | 113.02992040 |
| Topological Polar Surface Area | 41.1 |
| Heavy Atom Count | 7 |
| Formal Charge | 0 |
| Boiling Point | 157.00 to 159.00 °C. @ 760.00 mm Hg |
|---|---|
| Boiling Point | 158 °C (742 mm Hg) |
| Melting Point | 83 - 84 °C |
| Density | 1.067-1.072 |
| Refractive Index | 1.516-1.524 |
| Regulatory & Food Contact | EU Flavoring substances FDA Substance added to food: FLAVORING AGENT OR ADJUVANT Flavoring Agents FLAVOURING_AGENT: Flavouring Agent Green, Nut, Roast, Roasted No safety concern at current levels of intake when used as a flavouring agent |
|---|
| Reported hazard statements | H302 (98.1%) |
|---|
H302 (98.1%): Harmful if swallowed [Warning Acute toxicity, oral]
P264, P270, P301+P317, P330, and P501 (click each P-code to see the statement)
4,5-DIMETHYLTHIAZOLE; 3581-91-7; 4,5-Dimethyl-1,3-thiazole; Thiazole, 4,5-dimethyl-; 4,5-dimethyl thiazole; FEMA No. 3274; EINECS 222-703-3; BRN 0105694; U3RP5I088G; DTXSID40189348; 4-27-00-00986 (Beilstein Handbook Reference); 4,5-DIMETHYL THIAZOLE [FHFI]; RefChem:507854; DTXCID70111839; 222-703-3; 4,5-dimethyl-thiazole
CAS 3581-91-7; molecular formula C5H7NS; molecular weight — g/mol.
4,5-DIMETHYLTHIAZOLE, 3581-91-7, 4,5-Dimethyl-1,3-thiazole, Thiazole, 4,5-dimethyl-, 4,5-dimethyl thiazole, FEMA No. 3274.
Documented regulatory listings: EU Flavoring substances; FDA Substance added to food: FLAVORING AGENT OR ADJUVANT; Flavoring Agents.
Hazard statements reported: H302.
Boiling Point: 157.00 to 159.00 °C. @ 760.00 mm Hg; Boiling Point: 158 °C (742 mm Hg); Melting Point: 83 - 84 °C; Density: 1.067-1.072.
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.