Thermo Scientific Chemicals L-Cysteine hydrochloride, anhydrous, 98%

Description

L-cysteine hydrochloride , CAS# 7048-04-6, also known as L-cysteine hydrochloride monohydrate, is a soluble salt of the non-essential amino acid, L-cysteine. It is commonly used as a nucleophile in several chemical reactions.

L-Cysteine hydrochloride, anhydrous is widely used as additive in food production. It is used as an antioxidant to promote fermentation and keep the flavor. It is also used in cosmetics and animal feed.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

General description

• L-cysteine hydrochloride is a non-essential proteinogenic amino acid commonly used in chemical reactions, for instance, the thiol side chain in cysteine often participates in enzymatic reactions as a nucleophile.

Application

• L-cysteine hydrochloride plays an important role as a histidine ammonia-lyase inhibitor with the ability to interfere with the action of histidine ammonia-lyase.

• In chemical reactions, L-cysteine hydrochloride is used as a raw material for the production of S-carboxymethyl-L-cysteine, L-cysteine base, and N-acetyl-L-cysteine.

• This compound also has antioxidant activity.

• It has been used in laboratory protocols to separate dorsal root ganglion neurons.

• This compound is applied to study the inhibitory effect of L-cysteine hydrochloride hydrate in preventing enzymatic browning in apples.

Specifications

Chemical Identifiers

• CAS: 52-89-1
• Molecular Formula: C3H8ClNO2S
• Molecular Weight (g/mol): 157.61
• MDL Number: MFCD00064553
• InChI Key: IFQSXNOEEPCSLW-QYLAHFPANA-N
• Synonym: l-cysteine hydrochloride, cystein chloride, r-cysteine hydrochloride, l-cysteine.hcl, cysteine monohydrochloride, l-+-cysteine hydrochloride, l-cysteine, hydrochloride, l-cysteine monohydrochloride, cysteine hcl, l-cysteine hydrochloride anhydrous
• PubChem CID: 60960
• IUPAC Name: (2R)-2-amino-3-sulfanylpropanoic acid;hydrochloride
• SMILES: Cl.N[C@@H](CS)C(O)=O

• Melting Point: ∽180°C (decomposition)
• pH: 0.8 to 1.2
• Beilstein: 3560277
• Merck Index: 14,2781
• Solubility Information: Soluble in water. (580g/L at 20°C),
• Quantity: 25 g
• Odor: Irritating
• Formula Weight: 157.62
• Optical Rotation: +6.4° (c=5 in 5N HCl)
• Sensitivity: Air sensitive; Hygroscopic
• Percent Purity: 98%
• Chemical Name or Material: L-Cysteine hydrochloride, anhydrous

Safety and Handling

Product Identifier

• L-Cysteine hydrochloride, anhydrous

Signal Word

• Warning

Hazard Category

• Serious eye damage/eye irritation Category 2
• Skin corrosion/irritation Category 2
• Specific target organ toxicity Category 3

Hazard Statement

• H315-Causes skin irritation.
• H319-Causes serious eye irritation.
• H335-May cause respiratory irritation.

Precautionary Statement

• P261-Avoid breathing dust/fume/gas/mist/vapours/spray.
• P280-Wear protective gloves/protective clothing/eye protection/face protection.
• P302+P352-IF ON SKIN: Wash with plenty of water/soap.
• P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Supplemental information

• MIXTURE LIST-Contains : L-Cysteine, hydrochloride

RUO – Research Use Only