Product Brief Introduction
Product name: (-)-Chloramphenicol
CAS: 56-75-7
MF: C11H12Cl2N2O5
MW: 323.13
Product Specification
|
Appearance |
White, greyish-white or yellowish-white fine crystalline powder or fine crystals, needles or elongated plates |
|
Identification |
IR: the infrared absorption spectrum of the sample complies with the CRS standard. |
|
Solubility |
Slightly soluble in water, freely soluble in alcohol and in propylene glycol. Its alcohol solution is dextrorotatory and its ethyl acetate solution is levorotatory. |
|
Acidity or Alkalinity |
To 0.1g add 20ml of carbon dioxide-free water R. shake and add 0.1ml of bromothymol blue solution RI. Not more than 0.1ml of 0.02M hydrochloric acid or 0.02M sodium hydroxide is required to change the colour of the indicator. |
|
Specific Rotation |
+18.5°~ +20.5° |
|
Melting Point |
149.0℃~153.0℃ |
|
PH |
4.5-7.5 |
|
Loss on Drying |
≤ 0.3% |
|
Sulfated Ash |
≤ 0.1% |
|
Chloride (Cl-) |
≤ 0.01% |
|
Related Substances |
≤ 0.5% |
|
Total Aerobic Microbial Count |
≤ 10cfu/g |
|
Yeasts & Molds |
Negative |
|
E.Coli |
Negative |
|
Staphylococcus Aureus |
Negative |
|
Pseudomonas Aeruginosa |
Negative |
|
Assay |
98.0%~102.0% |
