99% N-Acetyl Cysteine Ethyl Ester CAS 59587-09-6 C7h13no3s Nacet N-Acetyl-L-Cysteine Ethyl Ester

• Appearance: Powder
• Transport Package: by Sea
• Specification: 25KG/CTN 50KG/BAG
• Trademark: YH
• Origin: China
• Model NO.: L-Cysteine
• Production Capacity: 3000 Ton Per Month

Product Description

Product Description

L-Cysteine

Cysteine is white crystalline or crystalline powder, soluble in water, slightly smelly, insoluble in ethanol, insoluble in ethyl eth er and other organic solvents. Melting point 240ºC, monoclinic crystal system. Cysteine is one of the sulfur-containing amino acids and is a non-essential amino acid

Specification

Testing Item	Standard	Result
Appearance	White crystals or crystalline powder	conforms
Specific rotation[a]D20	+ 8.3°~ +9.5°	+8.72°
State of solution (Transmittance)	≥95.0%	98.5%
Loss on drying	≤0.50%	0.18%
Residue on ignition	≤0.10%	0.07%
Heavy metals(Pb)	≤10PPM	<10PPM
Chloride (Cl)	600---1000ppm	800ppm
Arseni c (As2O3)	≤1PPM	conforms
Iron (Fe)	≤10PPM	<10PPM
Ammonium (NH4)	≤0.02%	<0.02%
Sulfate (SO4)	≤0.030%	≤0.030%
Other amino acids	Chromatographically	Qualified
PH value	4.5 ~ 5.5	5.0
Assay	98.0%~101.0%	99.4%

Application

Mainly used in medicine, cosmetics, biochemical research and so on. Used in bread to promote gluten formation, promote fermentation, mold, prevent aging and so on. Used in natural fruit juices to prevent vitamin C oxidation and to prevent juice from turning brown.

 

Packaging & Shipping

Sample: 1kg/bag with Polyethylene bag.
Orders: Professional Drum with net weight 25kg.
Storage:Extraction products should be store in sealed containers, avoiding direct exposure to the sun and moisture place.

Company Profile

HeBei YaHeng Import and Export Trading CO.,LTD

 

     HeBei YaHeng Import and Export Trading CO.,LTD located in Shijiazhuang City, Hebei Province, China, is a limited company specializing in the production and export of titanium dioxide and other chemical raw materials. Our company has many years of export experience and professional logistics distribution in this industry. We are committed to providing our customers with high-quality products, competitive prices, and high-quality services.
We have a strong production capacity, strong supply capacity, good factory environment, conducive to product storage, to ensure the quality of products.

Our factory has a large area and a complete range of product models. We are confident to provide you with quality products and services.

Welcome to your inquiry!

 

Our Advantages

Our clients

FAQ

Q1: What is the MOQ?
A: Our MOQ is 1000KG.
Q2: What is the lead time?
A: For stock,Sample time 1-3days,mass production 3-5days. To customizing products,need 35-45days.
Q3 :Can we put our logo on your product?
A :Yes,we can achieve it as your request.
Q4 :Could you offer the sample even pre-production sample before I place the order?
A :Yes,both could be offered.
Q5 :How should I pay for you if I place order to you?
A :Usually, the Payment terms T/T(30%deposit in advance,70% paid before the shipment)West Union or others could be accepted.
Language Spoken:English,Chinese