N-Acetyl-L-cysteine Cas 616-91-1

Basic Information of N-Acetyl-L-cysteine

Product Name

N-Acetyl-L-cysteine

CAS NO.

616-91-1

Apperance

White powder

Assay

99%

Pacakge

1kg/Foil Bag,25kg/Drum/Box

MOQ

1kg

Storage

Cool and dry place

Shelf Life

2 Years

Brand

Watson

  Items

Specifications

Results

Appearance

White crystals or crystalline powder

Conforms

Specific rotation

[α] D ²⁵

+21°~ +27°

+23.9°

State of solution

≥98.0%

98.8%

Chloride(Cl)

≤0.04%

<0.04%

Ammonium（NH 4 ）

≤0.02%

<0.02%

Sulfate(SO 4 )

≤0.030%

<0.030%

Iron(Fe)

≤20ppm

<20ppm

Heavy metals(Pb)

≤10ppm

<10ppm

Arsenic(As 2 O 3 )

≤1ppm

<1ppm

Loss on drying

≤0.5%

0.20%

Residue on ignition

≤0.20%

0.06%

Assay

98.5~101.0%

99.6%

PH

2.0~2.8

2.3

Melting point

106~110℃

108.2~108.7℃

Conclusion

This Batch Is Conforming With The Standard Of AJI92.

FAQ From Watson Biotechnology Co., Ltd

Q

Can I get a sample for free ?

A

For small QTY and low value product, we can provide sample for free exclude shipping cost. For high value sample, we will charge the basic sample cost, but we can refund all the cost if customers place order after sample test.

Q

How to confirm the product quality before placing orders ?

A

Most of our products confirm to international standards like USP/EP/BP/JP/CP. We will provide COA/TDS/MSDS for customers to confirm the specification before placing order.

Q

What is the payment you accept?

A

For small and low value order, we accept CreditCard, MaterCard,VISA, and T/T.For large order, we can do T/T and L/C. Any pay on delivery or pay-after are not available for us.

Q

What is your shipment way ?

A

For less than 100kg gross weight order will ship with courier like FedEx or UPS, we support customers to place courier orders remotely by their account, we will package the goods well and wait for pick up.For more than 100kg goods, we will transport by Air or Sea according to customers' requirement.

Q

How long is your after-sales service?

A

We accept customer’s quality complaint in three month after customer received the goods. We provide tech.support for all-life if customer place order from our company.

Q

How do you treat quality complaint ?

A

We support customer to provide our products to any rightful third party testing organization to test our products according to the COA specification, if the test result is confirm with COA, we will take all the loss for customers.