L(-)-Thiazolidine-4-carboxylic acid CAS 34592-47-7
L(-)-Thiazolidine-4-carboxylic acid is white power,It is used as an intermediate in organic synthesis,The melting point is 190-200 °C.
Test Item | Specification | Test Result |
Appearance | white powder | Conforms |
Specific Rotation[α]20/D | - 137° ~- 145°(C=2,H2O) | - 141.9° |
Sulphate(SO42-) | ≤0.03% | <0.03% |
Ammonium(NH4+) | ≤0.02% | <0.02% |
Iron(Fe) | ≤10ppm | <10ppm |
Heavy metal(Pb) | ≤10ppm | <10ppm |
Arsenic | ≤1ppm | <1ppm |
Other amino acids | Chromatographically not
detectable |
Conforms |
Assay | ≥98.0% | 99. 1% |
Loss on drying | ≤0.50% | 0.07% |
Conclusion | The results conform with manufacutrer’s standard. |
1.L-Thioproline used as an intermediate in organic synthesis.
2.L-Thioproline for or peptide coupling reactions.
25kgs/drum, 9tons/20’container
25kgs/bag, 20tons/20’container
L(-)-Thiazolidine-4-carboxylic acid
L(-)-Thiazolidine-4-carboxylic acid
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