L-Cysteine HCL Monohydrate AJI/BP CAS NO.7048-04-6

Factory Supply,Leader for this material

Appearance:A white or almost white, crystalline powder or colourless crystals,freely soluble in water,slightly in alcohol

Identification

A It complies with the test for specific optical rotation

B Conforms Infrared Absorption

E It gives reaction (a) of chlorides

Specific rotation [α ]D20 :+5.5 to+ 7.0° 

Appearance of solution:Clear and not more intensely coloured than reference solution BY6 

Ninhydrin-positive substances: Not more than 0.5% <0.5%

Ammonium(NH4):Not more than 0.02% 

Sulfate(SO4):Not more than 0.030% <0.030%

Iron(Fe) :Not more than 20ppm 

Heavy metals(Pb) :Not more than 10ppm 

Loss on Drying :8.0 to 12.0% 

Residue on ignition(sulfated) :Not more than 0.10% 

Assay 98.5 to 101.0 % 

Q1: Can I get some samples

A: Yes, we can supply the free sample, but the shipping cost be paid by our customers.

Q2: How to start orders or make payments
A: Proforma invoice will be sent first after confirmation of order, also enclosed our bank information. Payment by T/T, or Paypal.

Q3: How to confirm the Product Quality before placing orders
A: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
A: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
A:Delivery lead time: About 3-5 days after payment confirmed. (Chinese holiday not included)

Q6:Is there a discount
A:Different quantity has different discount.

Q7: How do you treat quality complaint
A: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
A:You can chat with us by Email, Trademanager, Skype Online, Whatsapp, Wechat or QQ.. You can choose your interested products and send inquiry to us. You can dial our telephone directly, you will get our reply. Send Email to us.