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Product Name:L-Thyroxine (L-甲狀腺素);
3,5,3’,5’-tetraiodothyronine;beta-[(3,5-diiodo-4-hydroxyphenoxy)-3,5-diiodophenyl]alanine
CAS:51-48-9
Molecular Formula:C15H11I4NO4
Molecular weight:776.87
Batch No.: 20190801
Production Date:2019年08月05日
Quantity:1kg
Test Item 檢測項目 |
Specification 標準 |
Result 檢測結果 |
Appearance 外觀 |
White(Light yellow) powder 白色(淺黃色)粉末 |
Conforms |
Odor 氣味 |
No Odor |
Conforms |
Assay 含量 |
≥98% |
98.2 % |
Melt 熔點 |
223℃-228℃ |
224.2℃-227.8℃ |
Loss on Drying 干燥失重 |
≤1% |
0.8% |
Heavy metal (Pb) 重金屬含量(Pb) |
≤10ppm |
<10 ppm |
The Specific Rotation 比旋光度 |
[α]20D=-5o(c=1,1N NaOH: EtOH=1:2) |
Conforms |
Conclusion:The product conforms to the company specification
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