Introduction
cas no:125317-39-7
Standard:USP31,EP6.0
cas no:125317-39-7
Standard:USP31,EP6.0
Specification
Subjects | Specifications |
Characters | Appearance | White or almost white powder |
Solubility | Freely soluble in water and in methanol , practically insoluble in hexane |
Identification | A. Infrared Absorption | ir spectrum of the sample corresponds to that of the ref standard |
B.HPLC | The retention time of the major peak in the chromatograms corresponds to that in the reference standard |
c. Tartrate Reaction | Positive for tartrate |
Test | Clarity of solution | Clear solution(140mg/10ml water) |
Color of solution | Absorbance at 420nm NMT0.03 (1.4%W/V solution in water) |
PH | 3.3~3.8 |
Water | Not more than 4.0% |
Residue on ignition | Not more than 0.1 |
Heavy metals | Not more than 20ppm |
Boron | Not more than 50ppm |
Fluorides | Not more than 50ppm |
Silver | Not more than 5ppm |
Related Compounds | Impurity A | Not more than 0.3% |
Any other impurity | Not more than 0.2% |
Sum of impurities other than A | Not more than 0.7% |
Residual Organic solvent | Chloroform
| Not more than 0.005% |
Methylence Chloride
| Not more than 0.01% |
Acetone
| Not more than 0.5% |
Packaging & Shipping
why choose our company
1. quality
our products meet msds safe standard and we have iso and other certificate so yan can get high quality products from our company.
2. price
we are the company which is the joint of trade and industry so we cao provide the competitive price and high quality product.
3.packing
we can do according to the customers' request.
4.transport
ems,dhl, tnt, ups ,fedex, by air, by sea
dhl express, fedex and ems for quantity less than 50kg, usually called as ddu service;
sea shipping for quantity over 500kg; and air shipping is available for 50kg above;
for high value products, please select air shipping and dhl express for safe;
5.service
we offer specialized logistic service including export declaration,customs clearance and every detail during shipment,this makes
us able to offer you one-stop service from the order to the products transported to your hand.
we will try our best to satisfied you.
1. tailor-made for every customers.
2. third-party test for the products you demand.
3. test your counter-samples and produce them for you.
4. best discount for old customers.