China (Mainland)
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52-90-4 L-Cysteine CAS NO.52-90-4
- FOB Price: USD: 3.00-3.50 /Metric Ton Get Latest Price
- Min.Order: 1 Kilogram
- Payment Terms: L/C,T/T
- Available Specifications:
99%(1-2)Metric Ton99%(2.1-10)Metric Ton
- Product Details
Keywords
- 52-90-4
- L-Cysteine
- L-а-Amino-b-mercaptopropionic acid
Quick Details
- ProName: 52-90-4 L-Cysteine
- CasNo: 52-90-4
- Molecular Formula: C3H7NO2S
- Appearance: White crystal or crystalline powder
- Application: 1. In cosmetics: used in the productio...
- DeliveryTime: 7 Days After Get Prepayment
- PackAge: DEUMS/IBC/ISOTANK
- Port: Any Chinese Port
- ProductionCapacity: 1000 Metric Ton/Week
- Purity: 99%
- Storage: Store In Dry, Cool And Ventilated Plac...
- Transportation: By Sea or Air
- LimitNum: 1 Kilogram
- Heavy Metal: ＜10ppm
- Limited Quantity: 99.6%
- Valid Period: 2 years
- Specific rotation[a]D20°: +8.72°
- State of solution (Transmittance): 98.9%
- Loss on drying: 0.15%
- Residue on ignition: 0.09%
- Heavy metals(Pb): ＜10ppm
- Chloride (Cl): ＜0.06%
- Arsenic (As2O3): conforms
- Iron (Fe): ＜10 ppm
- Ammonium (NH4): ＜0.02%
- Sulfate (SO4): ＜0.030%
- Assay: 99.6%
Superiority
|
Product Name: L-Cysteine |
Quantity:100g |
Batch No: 211102 |
|
Producing date: 2021.11.02 |
Date of Analysis: 2021.11.02 |
Expiry date: 2023.11.01 |
|
Reference standard: AJI92 |
Package: 25kg Paper Drum |
CAS No.: 52-90-4 |
|
Item |
Specifications |
Results |
|
Specific rotation[a]D20° |
+ 8.3°~ +9.5° |
+8.72° |
|
Identification |
Infrared Absorption |
Qualified |
|
State of solution (Transmittance) |
≥95.0% |
98.9% |
|
Loss on drying |
≤0.50% |
0.15% |
|
Residue on ignition |
≤0.10% |
0.09% |
|
Heavy metals(Pb) |
≤10ppm |
＜10ppm |
|
Chloride (Cl) |
≤0.06% |
＜0.06% |
|
Arsenic (As2O3) |
≤1PPM |
conforms |
|
Iron (Fe) |
≤10 ppm |
＜10 ppm |
|
Ammonium (NH4) |
≤0.02% |
＜0.02% |
|
Sulfate (SO4) |
≤0.030% |
＜0.030% |
|
Other amino acids |
Chromatographically |
Qualified |
|
pH value |
4.5 ～ 5.5 |
4.9 |
|
Assay |
98.0%～101.0% |
99.6% |
|
Conclusion: This product complies with AJI92 standard. |
||
1. In cosmetics: used in the production of perm essence, sunscreen, perfume, hair nourishing essence, etc. This kind of advanced perm essence and cold perm essence with cysteine substituted for thioglycolic acid has the advantages of easy perm, easy maintenance of hairstyle, soft and not It can also prepare sunscreen and hair growth perfume;
2. In medicine: cysteine is mainly used in liver medicine, antidote, expectorant and other medicines. Cysteine and its derivatives can be used for liver poisoning and detoxification, antipyretic and analgesic, ulcer treatment, fatigue recovery, infusion and comprehensive amino acid preparations, etc., especially for expectorant; treatment of bronchitis and phlegm reduction.
3. In food: bread fermentation accelerator, preservative. Cysteine is used as fermentation aid, antioxidant and stabilizer for milk powder and fruit juice, and nutritional additive for pet food;
4. L-cysteine can be used as the raw material for the production of N-acetyl-L-, carboxymethyl cysteine and other cysteine derivatives.
5. Accelerates the formation of gluten and prevents aging; it can be used in natural fruit juice to prevent the oxidation and browning of VC; it has detoxification effects on acrylonitrile and aromatic acidosis. Prevent radiation damage
Our Server:
1. Competitive offers with standard high quality or customize
2. Available customizing blending of above 2 single products
3. Prompt delivery within 2-3 weeks(1 weeks is available for ready stock)
4. Well-trained and professional technologist and sales with rich experience in the field for 5-10 years
5. Respond to inquires within 1 hour and 24hours' online service
6. Free sample and correct shipping documents dispatched according to regulations of different countries
7. Advise price trend accurately and help clients to make order decision
8. Weekly update offers provided to every potential client
FAQ:
Details
52-90-4 L-Cysteine
Products description
|
Product Name: L-Cysteine |
Quantity:100g |
Batch No: 211102 |
|
Producing date: 2021.11.02 |
Date of Analysis: 2021.11.02 |
Expiry date: 2023.11.01 |
|
Reference standard: AJI92 |
Package: 25kg Paper Drum |
CAS No.: 52-90-4 |
|
Item |
Specifications |
Results |
|
Specific rotation[a]D20° |
+ 8.3°~ +9.5° |
+8.72° |
|
Identification |
Infrared Absorption |
Qualified |
|
State of solution (Transmittance) |
≥95.0% |
98.9% |
|
Loss on drying |
≤0.50% |
0.15% |
|
Residue on ignition |
≤0.10% |
0.09% |
|
Heavy metals(Pb) |
≤10ppm |
＜10ppm |
|
Chloride (Cl) |
≤0.06% |
＜0.06% |
|
Arsenic (As2O3) |
≤1PPM |
conforms |
|
Iron (Fe) |
≤10 ppm |
＜10 ppm |
|
Ammonium (NH4) |
≤0.02% |
＜0.02% |
|
Sulfate (SO4) |
≤0.030% |
＜0.030% |
|
Other amino acids |
Chromatographically |
Qualified |
|
pH value |
|
4.9 |
|
Assay |
98.0%～101.0% |
99.6% |
|
Conclusion: This product complies with AJI92 standard. |
||
1. In cosmetics: used in the production of perm essence, sunscreen, perfume, hair nourishing essence, etc. This kind of advanced perm essence and cold perm essence with cysteine substituted for thioglycolic acid has the advantages of easy perm, easy maintenance of hairstyle, soft and not It can also prepare sunscreen and hair growth perfume;
2. In medicine: cysteine is mainly used in liver medicine, antidote, expectorant and other medicines. Cysteine and its derivatives can be used for liver poisoning and detoxification, antipyretic and analgesic, ulcer treatment, fatigue recovery, infusion and comprehensive amino acid preparations, etc., especially for expectorant; treatment of bronchitis and phlegm reduction.
3. In food: bread fermentation accelerator, preservative. Cysteine is used as fermentation aid, antioxidant and stabilizer for milk powder and fruit juice, and nutritional additive for pet food;
4. L-cysteine can be used as the raw material for the production of N-acetyl-L-, carboxymethyl cysteine and other cysteine derivatives.
5. Accelerates the formation of gluten and prevents aging; it can be used in natural fruit juice to prevent the oxidation and browning of VC; it has detoxification effects on acrylonitrile and aromatic acidosis. Prevent radiation damage
Company File
Founded in 2008, East Chemsources Limited is a professional manufacturer of supplier in food and pharmaceutical field in China.Through more than four years development, QINGDAO EAST CHEMSOURCES TRADE CO.,LTD,there is new branch office Qingdao East Chemsources Limited,our company has developed from single product at first to providing solution to finished products now, is committed to providing solutions for success and growth through long term relationships.
Currently, our products have been exported to more than 50 countries all over the world. Our service is accomplished by providing good quality solution that matches the specifications of our clients at competitive price. Our products will derive from trusted sources and arrive to our clients in time and well arranged manner, be creating the greatest benefits for our customers.
Whether your project is large or small, whether it needs one, several or all of our disciplines you will find our level of dedication to a quality result to be the same. We are looking forward to your sincere cooperation and participation.