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1.L-Cysteine-HCl-Monohydrate

Chemical Name: H-Cys-OH.HCl.H2O
Structure Formula: 　
Molecular Formula: C3H7NO2S•HCL•H2O
Molecular Weight: 175.63
Cas No: [7048-04-6]
Characteristics: White crystalline powder; tasteless, easily soluble in water but insoluble in alcohol and ether
Quality Standards: AJI97
Item Specifications (AJI97 )
Appearance White crystalline powder
Assay, % 98.5~100.5
Specific rotation +5.5~+7.0
Loss on drying, % 8.5~12.0
Transmittance, % >=98.0
Sulfate (as SO4), % <=0.02
Ammonium as (as NH4), % <=0.02
Iron (as Fe), % <=0.001
Heavy Metals (as Pb), % <=0.001
Arsenic (as As), % <=0.0001
Chloride,% 19.89~20.29
Residue on ignition, % <=0.1
Other amino acid Chromatographically not detd

The Characteristics and Uses: L-Cysteine hcl monohydrate is one of the important products the amino acid series. It is widely used in medical, chemical and food industries. 　　
Used for biochemical reagent, foodstuff additive, antioxidant, antiseptics and cold permanent waving of hair, etc.
Package and Transport: This product is contained in a double-layer package, the inner layer being a sealed nonpoisonous polyethylene bag or alumin, and the outer layer being a paper board barrel. Each barrel contains a net weight of 25kg. Packages may be arranged in accordance with customer’s requirements.
Handle with care. Protect the product from sunshine or rain. Do not transport them together with poisonous or harmful goods. This product belongs to the non-dangerous category and can be transported as a general chemical product.
Storage: Stored in dry, clean and ventilated places. In order to avoid pollution, it is prohibited to place this product together with poisonous or harmful substances. The expiry date is for two years.

Keywords:L-Cysteine HCl Monohydrate Cas No.:7048-04-6 Cas No 7048-04-6

2.L-Cysteine-Hydrochloride-Anhydrous

Amino Acid - L-Cysteine Hydrochloride Anhydrous

L-Cysteine HCL Anhydrous;
Cas No.:52-89-1
Chemical Name:H-Cys-OH.HCl
Molecular Formula:C3H7NO2S.HCl.H2O
Molecular Weight:175.63
Cas No:[52-89-1]
Characteristics:White crystalline powder; tasteless, easily soluble in water but insoluble in alcohol and ether
Quality Standards:AJI97
Item Specifications (AJI97 )
Appearance:White crystalline powder
Assay, % 98.0~102.0
Specific rotation +5.6~+8.9
Loss on drying, % <=1.0
Transmittance, % >=98.0
Sulfate (as SO4), % <=0.02
Ammonium as (as NH4), % <=0.02
Iron (as Fe), % <=0.001
Heavy Metals (as Pb), % <=0.001
Arsenic (as As), % <=0.0001
pH Value 0.5~2.0
Residue on ignition, % <=0.1
Other amino acid No detd

The Characteristics and Uses:L-Cysteine hydrochlorde anhydrous is one of the important products the amino acid series. It is widely used in medical, chemical and food industries.

It is a promotor for bread fermentation. It promotes the form of glutelin and prevents from getting old and feeble. It is used in natural fruit juice for preventing Vitamin C oxide. It has a detoxification for poison of acrylonitrile. It is used for protecting against radiation harm and therapy of bronchitis and reducing phlegm.
Package and Transport:This product is contained in a double-layer package, the inner layer being a sealed nonpoisonous polyethylene bag or alumin, and the outer layer being a paper board barrel. Each barrel contains a net weight of 25kg. Packages may be arranged in accordance with customer's requirements.
Handle with care. Protect the product from sunshine or rain. Do not transport them together with poisonous or harmful goods. This product belongs to the non-dangerous category and can be transported as a general chemical product.
Storage:Stored in dry, clean and ventilated places. In order to avoid pollution, it is prohibited to place this product together with poisonous or harmful substances. The expiry date is for two years.

Keywords:L-Cysteine HCL Anhydrous Cas No.:52-89-1 Cas No 52-89-1

3.L-Cysteine

L-Cysteine;
Cas No.:52-90-4
Chemical Name: (+)-2-Amino-3-mercaptopropionic acid
Molecular Formula: C3H7NO2S
Molecular Weight: 121.15
Cas No: [52-90-4]
Characteristics:White crystalline powder; tasteless, easily soluble in water but insoluble in alcohol and ether
Quality Standards: AJI97
Item Specifications (AJI97 )
Appearance White crystalline powder
Assay, % 98.0~101.0<>
Specific rotation +8.3~+9.5
Loss on drying, % <=0.5
Transmittance, % >=95.0
Chloride (as Cl), % <=0.04
Sulfate (as SO4), % <=0.03
Ammonium as (as NH4), % <=0.02
Iron (as Fe), % <=0.001
Heavy Metals (as Pb), % <=0.001
Arsenic (as As), % <=0.0001
pH Value 4.5~5.5
Residue on ignition, % <=0.1
Other amino acid No detd

The Characteristics and Uses:L-Cysteine is one of the important products the amino acid series. It is widely used in medical, chemical and food industries.
It is a promotor for bread fermentation. It promotes the form of glutelin and prevents from getting old and feeble. It is used in natural fruit juice for preventing Vitamin C oxide. It has a detoxification for poison of acrylonitrile. It is used for protecting against radiation harm and therapy of bronchitis and reducing phlegm.
Package and Transport:This product is contained in a double-layer package, the inner layer being a sealed nonpoisonous polyethylene bag or alumin, and the outer layer being a paper board barrel. Each barrel contains a net weight of 25kg. Packages may be arranged in accordance with customer's requirements.
Handle with care. Protect the product from sunshine or rain. Do not transport them together with poisonous or harmful goods. This product belongs to the non-dangerous category and can be transported as a general chemical product.
Storage:Stored in dry, clean and ventilated places. In order to avoid pollution, it is prohibited to place this product together with poisonous or harmful substances. The expiry date is for two years.

Keywords:L-Cysteine Cas No.:52-90-4 Cas No 52-90-4

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