Overseas Warehouse Direct Delivery L-Cysteine CAS 5290-4 in Stock

Model NO.
52-90-4
Transport Package
Foil Bag or Drums
Specification
white Powder
Trademark
L-Cysteine
Origin
China
Production Capacity
5000kgs Per Month
Reference Price
Please contact us for quote
Contact Us

Product Description

Nutritional Enhancements Pure L-Cysteine CAS  52-90-4  with Punctual Delivery



L-cysteine Basic Info

 
Product Name L-Cysteine
CAS NO. 52-90-4
Molecular formula C3H7NO2S
Color White crystal powder
Test methold HPLC
Specification 99%
MOQ 1KG
Storage conditions Store in cool & dry place, Keep away from strong light and heat.



L-cysteine Descrption


L-cysteine, also known as cysteine, is a non-essential amino acid in human body. Amino acid is the constituent unit of protein. Protein is the material basis of life. From human to microorganism, all of them are composed of protein. Proteins are composed of peptides, and the peptide chains of peptides are composed of amino acids. Different proteins are composed of amino acids in different order and length of peptide chains. Genes related to heredity are actually amino acid chains in different order.



Overseas Warehouse Direct Delivery L-Cysteine CAS 5290-4 in Stock


L-cysteine Function


1. L-Cysteine has an effective detoxification.

2. L-Cysteine can effectively prevent and treat radiation injury.

3. L-Cysteine can remove the skin melanin itself, change the nature of the skin itself, the
skin becomes natural whitening. It is a kind of ideal natural whitening cosmetics.

4. L-Cysteine can improve the symptoms of inflammation and skin allergies.

5. L-Cysteine on horny skin disease is also effective hypertrophy.

6. L-Cysteine has a function to prevent biological aging.

7.Cysteine is a kind of natural amino acid, has many uses in food processing, it is mainly
used for baking products, as a necessary component of dough improver

8.Cysteine is a kind of reductant, it can promote the formation of gluten, reduce the time
needed for mixing and the energy required for medicinal, cysteine by changing the protein
molecules and protein molecules between the internal disulfide bond, weaken the structure
of the protein, this protein is stretched.


L-cysteine Specification

 
ITEMS SPECIFICATION RESULTS
Appearance crystalline powder Conforms
Melting point About 205°C 206.4°C~206.7°C
Identification Meet the requirements Conforms
Appearance of solution Clear, not more intense than Y7 Conforms
PH 2.4~3.0 2.6
Loss on drying ≤0.5% 0.0004
Sulphated ash ≤0.1% 0.0001
Heavy metals ≤20 ppm <20 ppm
Related substances ≤0.25% Conforms
Assay 99.0%~101.0% 0.998
Identification Meet the requirements Conforms
Loss on drying ≤0.5% 0.0004
Residue on ignition ≤0.1% 0.0001
Heavy metals ≤0.003% <0.003%
Residue solvent - Ethanol ≤0.5% <0.04%
Chloride 16.9%~17.6% 0.171
Assay 98.0%~102.0% 100%
Conclusion: The product complies with BP2010/USP32/EP6 standard


Overseas Warehouse Direct Delivery L-Cysteine CAS 5290-4 in Stock



FAQ

Q1: Are products washable or reusable?
A: The products are disposable, can't be washed.

Q2: How does your factory do regarding quality control?
A: Quality is priority. We always attach great importance to quality controlling from raw
material to the very end product. Our factory has gained CE, FDA authentication.

Q3: How to dispose the used products?
A: After using products, please dispose them in a covered refuse container.

Q4:How can I get a sample to check the quality?
A: After price confirmation, you can require the sample to check the quality, if you just need a blank sample to check the
quality, we can provide you one sample for free, as long as you bear the express freight.

Q5:How long can I expect to get the sample?
A:After you pay the sample charge or express charge, and send us the confirmed feedback, the samples will be ready in 2-7days.The samples will be sent to you via express and arrive in 3-5days generally.

Q6:What about the lead time for mass production?
A:It depends on the order quantity and the season you place the order. Generally, production lead time is 15-20days.

Q7:What is the terms of delivery?
A:We accept EXW,FOB,CFR,CIF,DDU,DDP etc. depending on your selection and also your local custom policy

Q8:Terms of payment?
A:We accept payment as following: 50% T/T deposit,50% balnce before delivery. For small amount,100% T/T in advance.

Q9:Way to transfer?
A:You are welcome to use Ali-Pay, or you can pay directly to our company's account by T/T, if the amount is small, you can pay through paypal etc.

For more informations, pls kindly contact with us.

 

Pharmaceutical Intermediate

LEGALIS.IT, 2023