| post date: | nov 30,2021 |
| expiry date: | nov 30,2022 |
| detailed description: |
cas no. :537-55-3
payment method: t/t ac-tyr product name: ac-tyr-oh cas #: 537-55-3 synonyms: n-acetyl-l-tyrosine molecular formula: c11h13no4 molecular weight: 223.23 specifications: (reference standard : aji92) items standard analysis data appearance white crystal or white crystalline powder conforms specific rotation [20/d] (c=2 in h2o) +45 to +49 degree 46.2° transmittance not less than 95.0% 96.5% heavy metals (pb) not more than 10 ppm <10ppm arsenic (as2o3) not more than 2 ppm <2ppm loss on drying not more than 0.50% 0.25% residue on ignition not more than 0.30% 0.1% assay 98.0 to 102.0% 99.2% ph 2.0 to 3.0 2.3 |
| cas registry number: | 537-55-3 |
| synonyms: | ;l-tyrosine, n-acetyl-;acetyltyrosine;acetyl-l-tyrosine;ac-tyr-oh;ac-tyrosine;n-ac-l-tyr;n-aceyl-l-tyrosine;(2s)-2-(acetylamino)-3-(4-hydroxyphenyl)propanoate;n-acetyl-l-tryosine;n-acetyl-l-tryosine; |
| molecular formula: | c11h12no4 |
| molecular weight: | 222.2178 |
| molecular structure: | 
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| hazard symbols: | |
| risk codes: | r41:; |
| safety description: | s26:; s39:; |
