
Cysteine Powder
Other Name: L-Cysteine
Specification: ≥98% by HPLC
Appearance: White Powder
CAS: 52-90-4
MF: C3H7NO2S
MW: 121.15800 g/mol
EINECS: 200-158-2
Certificate:Halal, Kosher
Uses: health care
Shelf life:2 years
Packing:1kg/bag,25kg/drum
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Product Introduction
What is cysteine powder?
Cysteine powder is a sulfur-containing non-essential amino acid with a chemical formula of C₃H₇NO₂S. The sulfhydryl group (-SH) in its side chain gives it unique reducing properties and reactivity.
It can be ingested through food or synthesized by methionine conversion in the body. Foods mainly include meat, eggs, garlic, etc. Cysteine is a key component of protein structure stability and antioxidant system, and can promote glutathione synthesis.
Main types of cysteine:
1. L-cysteine (natural type)
- Biologically active form, widely present in organisms, involved in protein synthesis and metabolic regulation.
- Application areas: medicine (detoxifier), food (dough improver), skin care products (antioxidant ingredients).
2. N-acetylcysteine (NAC)
- Acetylated derivative of L-cysteine, more stable and easily absorbed.
- Core function: as a precursor of glutathione (GSH), used to treat drug poisoning and chronic respiratory diseases.
3. Cystine
- An oxidized form formed by two molecules of cysteine connected by a disulfide bond, commonly found in keratin, good for skin and nails.
- Function: Maintains tissue mechanical strength and promotes wound repair.
4. Cysteine hydrochloride
A stable salt form of cysteine, used in nutritional supplements and pharmaceutical preparations to enhance bioavailability.
COA:
|
Analysis |
Specification |
Result |
|
Physical Description |
|
|
|
PH |
4.5 ~5.5 |
4.8 |
|
Specific optical rotation[a]D20 |
+ 8.3° ~ +9.5° |
+8.5° |
|
State of solution (Transmittance) |
95.0% Min |
98.5% |
|
Chemical Tests |
||
|
Assay |
98.5%~101.0% |
98.5% |
|
Residual on ignition |
0.1% Max |
0.08% |
|
Loss on drying |
0.5% Max |
0.37% |
|
Chloride(Cl) |
0.04% Max |
0.04% |
|
Sulfate(SO4) |
0.03% Max |
0.02% |
|
Iron(Fe) |
10.0ppm Max |
<10.0ppm |
|
Ammonium (NH4) |
0.02% Max |
<0.02% |
|
Arsenic(As2O3) |
1.0ppm Max |
<1.0ppm |
|
Heavy metal (Pb) |
10.0ppm Max |
<10.0ppm |
|
Conclusion |
Complies with the AJI92 Standard. |
|
|
General Status |
Non-GMO, ISO Certificated. |
|
|
Packing and Storage |
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Packing: Pack in paper-carton and two plastic-bags inside. |
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Shelf life: 2 year when properly stored. |
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Storage: Store in a well-closed place with constant low temperature and no direct sun light. |
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cysteine health benefits:
1. Antioxidant and detoxification
- It can neutralize free radicals and reduce oxidative damage by synthesizing glutathione;
- Cysteine powder can directly chelate heavy metals and accelerate their excretion, which has a good detoxification effect.
2. Immunomodulation and anti-inflammatory
- It can enhance T cell activity and promote antibody production;
- Inhibit NF-κB pathway and reduce the release of inflammatory factors (such as IL-6, TNF-α).
3. Skin and hair health
- It can promote collagen and keratin synthesis, improve skin elasticity, and delay aging;
- Cysteine powder can repair UV damage and reduce hair loss.
4. Neuroprotection
The latest research shows that NAC may improve the symptoms of neurodegenerative diseases by regulating the glutamatergic system.
5. Respiratory tract protection
NAC acts as a mucolytic agent to reduce sputum viscosity and is used to treat chronic bronchitis and pulmonary fibrosis;
Relieve lung inflammation caused by air pollution or smoking.
6. Exercise recovery and metabolic support
Cysteine powder can relieve muscle oxidative stress after exercise and accelerate lactic acid clearance;
Assist lipid metabolism and reduce liver fat accumulation.
Applications:
1. Medicine: detoxifier, COPD adjuvant therapy, immune enhancer.
2. Food industry: as an antioxidant and flavor enhancer, it can help preserve meat and make bread fluffy.
3. Cosmetics: anti-aging essence, hair conditioner.
Precautions:
- High doses may cause gastrointestinal discomfort;
- Asthma patients should use nebulized NAC with caution, as it may induce bronchospasm;
- When used in combination with nitroglycerin, be aware of the risk of hypotension.
cysteine powder:
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About Us:
It is located in Xi'an, Shaanxi, which owns many scenic spots and historic sites such as Datang Furong Garden(Datang Hibiscus Park), Daciensi Tower, and Emperor Qinshihuang's Terracotta Army Museum.
We are a leading manufacturer and trader of standardized natural plant extracts, cosmetic raw materials, fruit and vegetable powders, health supplements, probiotics, amino acids, etc. We have: high-performance manufacturing capabilities, customized R&D capabilities, professional certification and accreditation, and professional agency testing. We look forward to cooperation!
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