What Is L-Cysteine Hydrochloride Anhydrous? Applications, Dosage, Alternatives & Specifications
Last updated: 2026-11-14 · CAS 52-89-1 · Industrial Grade
- Quick facts
- Name
- L-Cysteine Hydrochloride Anhydrous
- CAS number
- 52-89-1
- Grade
- Industrial Grade
- Certifications
- ISO 9001 · ISO 22000 · HACCP · FAMI-QS · Kosher · Halal · GMP · SGS
- Application areas
- 5
- Documentation
- COA · TDS · SDS
Overview
L-Cysteine Hydrochloride Anhydrate, chemically known as L-2-Amino-3-mercaptopropanoic acid hydrochloride, is the hydrochloride salt form of the sulfur-containing amino acid L-cysteine, in anhydrous form. Its molecular formula is C3H8ClNO2S, molecular weight is 157.62, CAS number is 52–89–1, EINECS number is 200–157–7, MDL number is MFCD00064553, and Beilstein Registry Number is 3560277. L-Cysteine Hydrochloride appears as white crystals or crystalline powder, odorless or with a slight characteristic odor, with a sour taste. It is soluble in water, slightly soluble in ethanol, and insoluble in diethyl ether, acetone, and benzene. As a stable hydrochloride salt of a sulfur-containing amino acid, L-Cysteine Hydrochloride is widely used in food, pharmaceutical, cosmetic, feed, and biochemical research fields. As a food additive, it serves as a dough conditioner, antioxidant, and nutritional supplement. In the pharmaceutical field, it is used for liver protection, detoxification, expectoration, and treatment of radiation poisoning.
Appearance: White crystals or crystalline powder, odorless or with a slight characteristic odor, sour taste.
Molecular Formula and Molecular Weight: C3H8ClNO2S, molecular weight 157.62.
Applications
Cosmetics and Personal Care Applications
L-Cysteine Hydrochloride is widely used in cosmetics and personal care products. Main Applications:
Health Products and Dietary Supplements Applications
L-Cysteine Hydrochloride is used as a nutritional fortifier in health products and dietary supplements. Main Applications:
Feed Additives Applications
L-Cysteine Hydrochloride is used as a nutritional fortifier and attractant in feed additives. Main Applications:
Biochemical Reagents and Cell Culture Applications
L-Cysteine Hydrochloride has important applications in biochemical reagents and cell culture. Main Applications:
Other Applications
Organic Synthesis Intermediate: Used in the synthesis of various organic chemicals.
Specification
| Item | Specification |
|---|---|
| Product Name | L-Cysteine Hydrochloride Anhydrous |
| CAS Number | 52-89-1 |
| Appearance | White to off-white crystalline powder |
| Grade | Food / Feed / Industrial Grade |
| Packaging | 25kg net fiber drum with PE liner |
| Shelf Life | 24 months |
Packaging & Storage
- Packing: 25kg net fiber drum with double PE liner.
- Sample: 100-500g free sample available.
- Storage: Keep in tightly closed packaging, cool, dry, well-ventilated. Protect from light and moisture.
- Shelf Life: 24 months from production date.
Quality & Certifications
Every batch tested by in-house QC lab. COA, TDS, SDS provided with each shipment.
Regulatory & Compliance
EU
Complies with EU regulations and FAMI-QS standards.
USA
Meets FDA and AAFCO requirements.
China
Registered under Chinese MOA regulations.
International
Kosher, Halal, ISO certified. FTA forms available.
Safety & Handling
- Hazard Class: Generally non-hazardous. Refer to SDS for details.
- Storage: Room temperature, dry, sealed. Avoid strong oxidizers.
- Transport: Non-dangerous goods. Standard sea/air freight.
- SDS: Available on request at sales@xadditive.cn.
Frequently asked questions
MOQ?
MOQ is 1kg for trial, 25kg for regular orders. Free samples available.
Shelf life?
24 months from production date when stored properly.
Certifications?
ISO 9001, ISO 22000, HACCP, FAMI-QS, Kosher, Halal, COA, SDS, TDS.
How to get quote?
Email sales@xadditive.cn with your requirement. Reply within 30 minutes.
Request a quote & COA
Ask for the current specification sheet, a COA sample and a bulk quotation — reply within 30 minutes on working days.