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

• 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),
• Formula Weight: 157.62
• Percent Purity: 98%
• Quantity: 100 g
• Odor: Irritating
• Optical Rotation: +6.4° (c=5 in 5N HCl)
• Sensitivity: Air sensitive; Hygroscopic
• Chemical Name or Material: L-Cysteine hydrochloride, anhydrous

Safety and Handling

Hazard Category	H315-H319-H335
Hazard Statement	GHS H Statement H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Precautionary Statement	P261-P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P332+P313-P362-P501c
EINECSNumber	200-157-7
RTECSNumber	HA2275000
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only