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L-Cysteine 52-90-4 Amino Acid crystalline powder for Cosmetics And Medicine

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L-Cysteine 52-90-4 Amino Acid crystalline powder for Cosmetics And Medicine

Large Image : L-Cysteine 52-90-4 Amino Acid crystalline powder for Cosmetics And Medicine Get Best Price

Product Details:

Place of Origin:	China
Brand Name:	DKY
Model Number:	52-90-4

Payment & Shipping Terms:

Minimum Order Quantity:	1kg
Packaging Details:	1kg/bag or 25kg/drum
Delivery Time:	5-7 work days
Payment Terms:	T/T, Western Union, MoneyGram
Supply Ability:	800kg per year

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Detailed Product Description

CAS Number:	52-90-4	Molecular Formula:	C3H7NO2S
Molecular Weight:	121.16	EINECS No:	200-158-2
Melting Point:	220 ° C	Specific Rotation:	8.75º(c=12,2NHCl)
Boiling Point:	293.9±35.0°C	Density:	1.197
Flash:	131.5ºC	Refractive Index:	8.8°(C=8,1mol/LHCl)
Solubility:	Soluble In Water, Ethanol, Acetic Acid And Ammonia, Insoluble In Ether, Acetone, Ethyl Acetate, Benzene, Carbon Disulfide And Carbon Tetrachloride.	Appearance:	White Crystalline Powder
High Light:	amino acid supplements , nutritional raw materials

L-Cysteine 52-90-4 amino acid powder used in cosmetics and medicine

Basic parameter:

1. Product name: l-cysteine

2. Product alias: l-alanine,3-mercapto-; L - Amino - thopro - ponicacid; L - Mercaptoalanine; NSC - 8746. PropanoicAcid, 2 - amino - 3 - mercapto -, (R) -; Thioserine; Cysteine, b - mercapto - alanine; L - CYSTEINEFREEBASE, BIOTECHNOLOGY &

3. CAS number: 52-90-4

4. Molecular formula: C3H7NO2S

5. Molecular weight: 121.16

6. EINECS no. : 200-158-2

7. Melting point: 220 ° C (dec) (lit.)

8. Specific rotation: 8.75 (c=12,2NHCl)

9. Boiling point: 293.9 + / - 35.0 ° C

10. Density: 1.197

11. Flash: DHS 131.5 C

12. Refractive index: 8.8°(C=8,1mol/LHCl)

13. Storage conditions: Store at RT.

14. Solubility: H2O:25mg/mL

15. Appearance: white crystalline powder

16. Solubility: soluble in water, ethanol, acetic acid and ammonia, insoluble in ether, acetone, ethyl acetate, benzene, carbon disulfide and carbon tetrachloride.

Certificate of Analysis:

Product Name:L-Cysteine	Quantity:1000kgs	Batch No:191022006
Producing date: 2019.10.22	Sampling date: 2019.10.23	Send out date: 2019.10.24
Reference standard: AJI92	Package: 25kg/drum	Expiry date:2021.10.21
Item	Specifications	Test Results
Description	White crystals or crystalline powder	White crystalline powder
Assay,%	98.0~101.0	99.7
pH value	4.5～5.5	4.77
Specific optical rotation[a]_D^20°	+8.3^o~ +9.5^o	+8.8^o
State of solution (Transmittance) min	95.0	99.5
Loss on drying,% max	0.5	0.22
Residue on ignition,% max	0.1	0.07
Chloride (Cl),% max	0.04	＜0.04
Sulfate (SO₄),% max	0.030	＜0.030
Ammonium ( NH₄), % max	0.02	＜0.02
Heavy metals(Pb),% max	0.001	＜0.001
Iron (Fe) , % max	0.001	＜0.001
Arsenic (as As),% max	0.0001	＜0.0001
Other amino acids	Conforms	Conforms
Conclusion: Agree with the specification of AJI92.

Structure:

USES:

1. Bread improver; Nutritional supplements; Antioxidants; Stabilizer.color-protecting. Detoxification of acrylonitrile and aromatic acidosis; It can prevent radiation damage. Has the treatment bronchitis and the phlegm function; It has the intoxicating effect of absorbing alcohol and converting it into acetaldehyde in the body. According to gb2760-96, it can be used for spices.

2. Used for the treatment of eczema, urticaria, freckles and other skin diseases, its series of products are widely used in the pharmaceutical, food and cosmetic industries.

3. For biochemical research, medicine as hepatitis, liver poisoning, poisoning of radioactive drugs, antimony agent and other antidotes.

4. Mainly used in medicine, cosmetics, biochemical research, etc. Used in bread, to promote the formation of gluten and promote fermentation, mold, prevent aging, etc. Used in natural fruit juices to prevent vitamin C from oxidizing and to prevent the juices from turning brown. This product has detoxification effect, can be used for acrylonitrile poisoning, aromatic acidosis. It also ACTS as a preventive against radiation damage to the body and is used to treat bronchitis, especially as a expectorant (mostly in the form of acetyl l-cysteine methyl ester). Cosmetics are mainly used for beauty water, perm fluid, sun - proof skin care cream and so on.

5. It is widely used in medicine, food cosmetics and other industries.

6. Mainly used in medicine, cosmetics, biochemical research, etc. Used in bread, to promote the formation of gluten and promote fermentation, mold, prevent aging, etc. Used for the treatment of eczema, urticaria, freckles and other skin diseases.

7. NMDA glutamate receptor agonists.

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