High Purity L-Cysteine Hydrochloride Anhydrous CAS 52-89-1

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L-Cysteine Hydrochloride Anhydrous

Products Description

Name: L-Cysteine Hydrochloride Anhydrous

Cas: 52-89-1

Purity: 99%min


Basic Info:







Stock Availability

In stock

Brand Name

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Product Introduction:

L-Cysteine ​​Hydrochloride Anhydrous is an important substance widely present in nature. It exists in various animals and plants and is an essential amino acid for the human body.

L-Cysteine ​​Hydrochloride Anhydrous is a colorless to white crystal or crystalline powder, with a slight odor and sour taste, and a melting point of 175°C (decomposition). It is soluble in water and the aqueous solution is acidic. A 1% solution has a pH value of about 1.7 and a 0.1% solution has a pH value of about 2.4.

This product is also soluble in alcohol, ammonia and acetic acid, but insoluble in ether, acetone, benzene, etc. L-Cysteine ​​Hydrochloride Anhydrous has reducing properties, has antioxidant properties and prevents non-enzymatic browning.

L-Cysteine Hydrochloride Anhydrous is an important organic chemical intermediate that is widely used in industries such as biochemistry, medicine, food, feed and cosmetics.

Product Nature:

  • Melting point 180°C
  • Specific optical rotation 5.5º(c=8,6NHCL)
  • Storage conditionsInertatmosphere, RoomTemperature
  • Solubility H2O: 1Mat20°C, clear, colorless
  • Optical activity(α)20/D+6.4±0.3°,c=5%in5MHCl


Product NameL-Cysteine Hydrochloride Anhydrous
CAS No.52-89-1
Appearance White crystalline powder
Content99% min
Shelf Life2 years
Packing1kg/bag,25kg/bag or as your requirements

The chemical properties of L-Cysteine Hydrochloride Anhydrous:

  • Stable to acid, it is easily oxidized to cystine by air in neutral or slightly alkaline solution. Trace iron and heavy metal ions can promote oxidation. The hydrochloride is relatively stable and is usually made from hydrochloride. L-cysteine hydrochloride anhydrous is a non-essential amino acid containing sulfur.

  • In the living body, the sulfur atom of methionine replaces the hydroxyl oxygen atom of serine, which is synthesized from thioether.

  • Anhydrous L-cysteine hydrochloride can produce glutathione in the liver, which participates in the reduction process of cells and the metabolism of phospholipids. Protect liver cells from damage, stimulate hematopoietic function, increase white blood cells, and promote skin damage repair. Can be promoted.

Product function:

  1. L-Cysteine ​​​​Hydrochloride Anhydrous is soluble in water and can be rapidly absorbed by the human body when made into injections or tablets. It is the main raw material for the production of carboxymethylcysteine ​​and acetylcysteine.
  2. L-Cysteine ​​Hydrochloride Anhydrous can clinically treat leukopenia, leukopenia caused by administration of anticancer drugs and radiopharmaceuticals, and antidote of heavy metal poisoning.
  3. Also, L-Cysteine ​​Hydrochloride Anhydrous is also used to treat toxic hepatitis, thrombocytopenia, skin ulcer, it can prevent liver necrosis, treat tracheitis and reduce phlegm, detoxify acrylonitrile and aromatic poison. Can prevent radiation damage
  4. Bread improver: promote fermentation and prevent oxidation. L-Cysteine ​​​​​​Hydrochloride Anhydrous is used as a fast-growing agent in bread and food, which can change the flavor of bread and food.
  5. In terms of cosmetics, L-Cysteine ​​​​​​​​​Hydrochloride Anhydrous can be used in cosmetic perms, sunscreens, hair growth perfumes and hair conditioners, etc.
  6. Nutritional Supplements, Antioxidants, Color Protectors: Used in natural fruit juices to prevent vitamin C oxidation and discoloration.



Pre-Sales Service

* Timely reply and 24 hours online, the professional team will provide you with the most favorable prices and high-quality products.

* The sample supports testing and inspection.

* Each batch of products will be tested to ensure that its quality meets user needs.

*Packaging can also be made according to customer requirements.

*Any inquiries will be answered by our relevant personnel within 24 hours.

*We will provide you with commercial invoice, packing list, packing list, COA, health certificate and certificate of origin if you need it. If your market has other special requirements, please let us know.


After-Sales Service

*We will monitor the logistics information in real time and will share the information with you.

* You can consult us at any time if you have any questions about the product, and we will answer you in time.

*If you have any questions about the product, you can report it to us, we will deal with it in time for you, and the product can be returned.


1. ≤50kg, we recommend express delivery, usually called DDU service;

2. ≤500kg, air transportation is generally recommended, usually called FOB, CFR or CIF service;

3.>500kg, sea freight is generally recommended, usually called FOB, CFR or CIF service;

4. For high-value products, please choose air and express to ensure the safety of the products.


Do you accept sample order?

We will make samples before mass production. After the samples are approved by the department and users, we will start mass production. During the production process, we will carry out 100% inspection, and then carry out random inspection before packaging.

How to confirm whether the product quality meets our needs before placing an order?

You can consult us to get free samples of some products, you only need to pay the freight or arrange express delivery to us and get the samples. You can send us the product specifications and requirements you need, and we will manufacture products according to your requirements.

What’s your MOQ?

Our MOQ is 1kg. But usually we can also accept a smaller quantity, such as 100g, if you need it, provided that the sample fee is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.

Learn more about us

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Packaging and shipping

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L-Cysteine Hydrochloride Anhydrous