Min.Order / FOB Price:Get Latest Price
1 Kilogram |
FOB Price:USD 4.0000 -5.0000 |
Other Names: dl-chloramphenicol;synthomycin EINECS No.: 200-287-4 Place of Origin: Jiangsu China (Mainland)
APPEARANCE |
WHITE OR YELLOW-WHITE CRYSTALLINE POWER |
YELLOW-WHITE CRYSTALLINE POWER |
CRYSTALLINITY |
MEETS THE REQUIREMENTS |
PASS |
Identification A |
IR spectrum corresponds to that of the EP reference standard |
Confirm |
IdentificationB |
The principal spot in the chromatogram obtained with the test solution is similar in position and size to that obtained with the reference solution |
Confirm |
IdentificationC |
The aqueous layer is coloured light From reddish- violet to purple. |
Confirm |
Identification D |
The solution gives reaction (a) of chlorides. |
Confirm |
Acidity or alkalinity |
Not more than 0.1ml. |
Confirm |
MELTING POINT |
149.0~153.0 °C |
150~151°C |
SPECIFIC OPTICAL ROTATION |
+18.5 ~ +20.5 |
+19.6 |
CHLORIDE |
≤100PPM |
PASS |
RELATED SUBSTANCES (TCL) |
≤0.5% |
PASS |
LOSS ON DRYING |
≤0.5% |
0.0% |
SULPHATED ASH |
≤0.1% |
0.04% |
ASSAY (ON THE DRIED BASIS) C11H12CL2N2O5 |
98.0%-~102.0% |
98.9% |
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