USD $6.00-9.00 / Gram
USD $6.00-9.00 / Gram
USD $14.60-15.00 / Metric Ton
USD $6.00-9.00 / Gram
USD $20.00-35.00 / Metric Ton
USD $4.50-5.00 / Liter
USD $100.00-150.00 / Kilogram
USD $4.50-5.00 / Liter
USD $6.00-9.00 / Gram
chlortetracycline hydrochloride
c.a.s no. : 64-72-2
synonyms: chlortetracycline hcl
molecular formula: c22h23cln2o8.hcl
molecular weight : 515.35
characteristic: yellow crystalline powder
melting point: 210-215 °c
boiling point: 694.1℃ at 760 mmhg
solubility: soluble in hydroxide or carbonate solution, slightly soluble in water and ethanol, almost insoluble in acetone ether and chloroform.
specification:
test items |
specification |
test results |
character |
yellow crypowder |
approved |
identification |
meets the requirements |
approved |
spec rotation |
-235o~-250o |
-242o |
ph value |
2.3~3.3 |
2.6 |
(e05%1cm) |
≤0.40(460nm) |
0.277 |
loss on drying |
≤2.0% |
0.73% |
sulphated ash |
≤0.5% |
0.1% |
heavy metals |
≤50ppm |
approved |
related substances |
meets the requirements |
approved |
ctc.hcl |
≥89.5%(hplc) |
89.70% |
tc.hcl |
≤8.0%(hplc) |
5.53% |
4epl-ctc.hcl |
≤4.0%(hplc) |
2.25% |
tc.hcl+ctc.hcl |
94.5~102%(hplc) |
95.23% |
conclusion |
qualified |