L-Cysteine HCl Monohydrate & Anhydrous – Premium Food & Pharma Grade

L-Cysteine Hydrochloride is a highly soluble form of the sulfur-containing amino acid L-Cysteine. Yantai Hongyu Starry Biotech Co., Ltd. offers both Monohydrate and Anhydrous forms, manufactured with advanced technology to ensure superior purity and stability for food processing, pharmaceuticals, and cosmetics.

Technical Specifications Comparison

Characteristics	L-Cysteine HCl Monohydrate	L-Cysteine HCl Anhydrous
CAS Number	7048-04-6	52-89-1
Molecular Formula	C3H7NO2S·HCl·H2O	C3H7NO2S·HCl
HS Code	2930.9010.00
Appearance	White crystalline powder or colorless crystals
Assay (Dry Basis)	99.0% – 100.5% (USP/AJI/EP/FCC)
Solubility	Highly soluble in water

Why Partner with Hongyu Starry Biotech?

Rapid Dissolution for Formulators

Our L-Cysteine HCl ensures quick and clear dissolution, saving production time and ensuring batch-to-batch consistency in liquid formulations.

Cost-Efficient Dough Improvement

Acts as a superior bread improver, optimizing gluten structure and reducing mixing time for large-scale bakery operations.

Exceptional Stability

Advanced moisture control in our Anhydrous form prevents caking, extending shelf life even in challenging storage environments.

Yantai Logistics Advantage

Strategic shipping from Yantai since 2005, providing global manufacturers with stable inventory and fast customs clearance.

Primary Applications

Bakery & Food: Used as a dough conditioner to improve texture, elasticity, and processing efficiency.
Pharmaceuticals: A critical raw material for parenteral nutrition (IV drips) and liver-protection drugs.
Cosmetics: Found in permanent wave formulations and skin-brightening products as a potent antioxidant.
Flavour Industry: Acts as a precursor for various meat-like flavours in processed foods.