Audited Supplier
| Items | Standard | Result |
| Appearance | White or almost white powder | White powder |
| Identification | HPLC:Retention time conforms to that of the reference standard Amino acids: Asp: 0.90-1.10; Glu: 0.90-1.10 Pro: 0.90-1.10; Gly: 0.90-1.10 Leu: 0.90-1.10; Tyr: 0.7-1.05 Half-Cys: 1.4-2.1;Ile: 0.90-1.10 | Conforms |
| pH | 3.0-6.0 | 5.1 |
| Related substances (HPLC) | Impurity A≤1.0% Impurity B≤1.0% Impurity C≤1.5% Other single impurity≤0.5% Total impurities≤5.0% | 0.02% 0.11% 0.1% 0.06% 0.4% |
| Acetic acid (HPLC) | 6.0%-10.0% | 6.8% |
| Water(KF) | NMT 5.0% | 2.1% |
| Bacterial endotoxins | Less than 300 IU/mg | Conforms |
| AcN(GC) | Not more than 0.041% | Conforms |
| MeOH(GC) | Not more than 0.3% | Conforms |
| Triethylamine(GC) | Not more than 0.032% | Conforms |
| Assay Calculated with reference to anhydrous, acetic acid free substance | 93.0%-102.0% | 99.2% |
Packaging: According to customer requirements
Transportation:Door to Door
Shipping can be DHL, UPS, TNT, EMS, Fedex, etc.
For large orders, they will be delivered by air or sea.
| Weight | Package |
| <25KG | By foil-alum bag/pap/bottle |
| ≥25kg | Package: 25kg/drum/bag or as your request |
Hangzhou Dingyan Chem Co., LTD. is located in the beautiful tourist city of hangzhou, is a comprehensive chemical enterprice which doing import and export business by its own company, and quality control by ISO9001:2008. Product range including HARD FAT(Fatty bases for Suppositories), API, pharma intermediates, metal catalyst, biochemical reagent and general reagents, plant extracts, plant growth regulator, food additive, etc.
With the developing world market, we adhere to the principle of "quality, service, integrity and development" , following "low carbon, environmental protection", forge ahead, and constantly in pursuit of higher level of product quality and service.
We warmly welcome customers home and abroad to build mutual trust, mutual benefit and stable cooperation relatiions.
https://dingyanchem.en.made-in-china.com/contact-info.html
Hangzhou Dingyan Chem is a leading manufacturer and supplier of chemicals in China.We develop,produce and distribute high quality pharmaceuticals, intermediates, special chemicals and other fine chemicals.
We could give you:
1.Best quality in your requirement
2.Competitive price in China market
3.mature Technical support
4.Professional logistic support
All we want is win-win business. Send yr. inquiries, you will get it!
1.Best quality in your requirement
2.Competitive price in China market
3.mature Technical support
4.Professional logistic support
All we want is win-win business. Send yr. inquiries, you will get it!
Q1 Can i get some samples
A1 Yes, we can supply the free sample, but the shipping cost be paid by our customers.
Q2 How to start orders or make payments
A2 Proforma invoice will be sent first after confirmation of order, enclosed our bank information. Payment by T/T, Western Union or Paypal or Escrow(Alibaba).
Q3 How to confirm the Product Quality before placing orders
A3 You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.
Q4 What's your MOQ
A4 Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.
Q5 How about delivery leadtime
A5 Delivery lead time: About 3-5 days after payment confirmed. (Chinese holiday not included)
Q6 Is there a discount
A6 Different quantity has different discount.
Q7 How do you treat quality complaint
A7 First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.
Q8 How to contact us
A9 You can chat with us by Trademanager,MSN&Skype Online.
You can choose your interested products and send inquiry to us.
You can dial our telephone directly or send Email to us., you will get our reply.
