USD $100.00-150.00 / Kilogram
USD $3.00-10.00 / Kilogram
USD $6.00-9.00 / Gram
USD $6.00-9.00 / Gram
USD $10.00-50.00 / Kilogram
USD $15.00-50.00 / Kilogram
USD $6.00-9.00 / Gram
USD $3.00-10.00 / Kilogram
good quality
competitive price
on time delivery
high quality
competitive price
on time delivery
fast shipment
specification:
test items |
specification |
results |
characteristic |
white or almost white, crystalline powder |
white crystalline powder |
identification a identification b |
positive identification |
complies |
positive identification |
complies |
|
melting point |
140 to 145 |
142.1 ~143.1 |
specific rotation |
-42 to -47.5 |
-45.4° |
chromatographic purity |
individual impurity ≤0.5 % sum of impurities ≤ 1.0% |
complies |
limit of ketones |
no deeper than the control solution |
complies |
sulfates |
not more than 2000 ppm |
complies |
loss on drying |
not more than 1.0 % |
0.07% |
residue on ignition |
not more than 0.2 % |
0.01% |
chloride content |
17.0% to 17.7% |
17.5% |
assay |
97.5% to 102.5 % |
99.9% |
particle size |
98% past 40 mesh |
complies |
residual solvents |
methanol ≤3000 ppm |
68 ppm |
2-propanol ≤5000 ppm |
93 ppm |
|
ethanol ≤5000 ppm |
nd |
|
package and storage |
preserve in tight and light-resistant containers store at 25°c. excursion permitted between 15°c to 30°c |
|
conclusion |
the product meets the requirements of usp31 |
application:
1).it can contraction local vascular.
2).it is used to prolonged local anesthesia time of surgery.
3).it also used to diminish inflammation of the nasal mucosa congestion,boost for acute hypotension and etc.