Cysteamine hydrochloride

CAS Number
156-57-0
EC Number
205-858-1

What is Cysteamine hydrochloride?

Cysteamine hydrochloride (CAS 156-57-0), also sold as mercaptamine hydrochloride or cysteamine HCl, is a stable salt form of the aminothiol cysteamine.

Where is Cysteamine hydrochloride used?

  • Pharmaceuticals: intermediate in the synthesis of active ingredients
  • Cystinosis treatment formulations: basis for API procurement
  • Textile and leather processing: reducing agent in wool and hair fiber treatments
  • Permanent waving, softening and depilation: controlled disulfide bond cleavage
  • Agriculture and animal feed: growth-promoting additive and antioxidant stabilizer in premix formulations
  • Food manufacturing: flavoring agent and dough conditioner, where its reducing action on gluten disulfide bonds improves dough extensibility in baked goods

Commercial specifications

  • Packaging from kilogram quantities up to bulk drum supply

Other Names (Synonyms)

2-Aminoethanethiol hydrochloride|Cysteamine HCl|Mercaptamine hydrochloride|Cysteaminium chloride|Bekaptan|ETHANETHIOL, 2-AMINO-, HYDROCHLORIDE|Mercaptoethylamine hydrochloride|Merkamin hydrochloride

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What are the physical properties of Cysteamine hydrochloride?

Melting Point 70.2-70.7 °C
Boiling Point 238.5°C[at 101 325 Pa]
Density 0.75
Appearance White Solid
Color White
Form Crystalline Powder or Pellets
Water Solubility VERY SOLUBLE
Vapor Pressure 5.333Pa at 25℃
Refractive Index 1.6100 (estimate)
pH 3.3-5.0 (400g/l, H2O, 20℃)
Log P -2.14 at 25℃

How is Cysteamine hydrochloride classified and handled safely? Learn More

Warning
GHS07· Irritant

Hazard Statements

H302 Harmful if swallowed
H317 May cause an allergic skin reaction
H319 Causes serious eye irritation
H335 May cause respiratory irritation

Precautionary Statements

P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.

Which trade and regulatory codes apply to Cysteamine hydrochloride?

HS Code 29309070
UN Number 3335
Storage Class 11 - Combustible Solids
WGK (Germany) 3
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