Audited Supplier
| Assay (perchloric acid titration, calculated on dried substance) | 99.0 - 101.0 % |
| Identity (IR-spectrum) | passes test |
| Identity (specific rotation) | passes test |
| Appearance | white to almost white, crystalline powder |
| Appearance of solution (50g/l, hydrochloric acid 1mol/l) | clear and colorless |
| Spec. rotation (α 20/D, 20g/l, water, calc. on dried substance) | -33,0 to -35,5 |
| Chloride (Cl) | ≤ 200 ppm |
| Sulfate (SO4) | ≤ 200 ppm |
| Al (Aluminium) | ≤ 5 ppm |
| As (Arsenic) | ≤ 5 ppm |
| Ca (Calcium) | ≤ 10 ppm |
| Co (Cobalt) | ≤ 5 ppm |
| Fe (Iron) | ≤ 5 ppm |
| K (Potassium) | ≤ 5 ppm |
| Mg (Magnesium) | ≤ 5 ppm |
| Na (Sodium) | ≤ 50 ppm |
| Zn (Zinc) | ≤ 5 ppm |
| Ninhydrin-positive substances (LC) (any ninhydrin-positive impurity) | ≤ 0.2 % |
| Ninhydrin-positive substances (LC) (ammonium (570 nm)) | ≤ 0.02 % |
| Ninhydrin-positive substances (LC) (total impurities) | ≤ 0.5 % |
| Loss on drying (105 °C; 3h) | ≤ 0.30 % |
Q&A
Q1.Are you a factory or trading company?
A:Yes,we are factory,but not just a factory,as we have sales team,own designers,own showroom ,can help buyers to decide which products are their best choice,and all your inquiry will be replyed within 24 hours.
Q2:Could you send me all your catalogues and price list?
A:As we have more than thousands of items,even 1 item have different size and package,it is really too hard for us to send you all our catalogue and price list for you.Please inform me the items,size and packages you interested in ,so we can offer you the price list you want for your reference .
Q3.How can I get some samples?
Kindly send us your address, we are honored to offer you samples.
Q4. How does your factory do regarding quality control?
Our factory has gained ISO9001 2008 and REACH
Q5:What's your Delivery Time?
In generally, the delivery time is 15 days-20 days.We will make the delivery as soon as possible with the guaranted quality.
Q6:What is the convenient way to pay?
A:L/C , T/T ,Paypal, Western Union and Escrow are accepted,and if you have better idea , please feel free to share with us
Q7:Which mode of transport would be better?
In general,we advice to make delivery by sea which is cheap and safe.Also we respect your views of other transportation as well.
