Melting point :67-71 °C
Boiling point :238.5℃[at 101 325 Pa]
Density :0.75
vapor pressure :5.333Pa at 25℃
refractive index :1.6100 (estimate)
storage temp. :2-8°C
solubility :H₂O: 1 m at 20 °C, clear, colorless
form :Crystalline Powder or Pellets
color :White
PH :3.3-5.0 (400g/l, H2O, 20℃)
Water Solubility :VERY SOLUBLE
Sensitive :Hygroscopic
λmax :λ: 280 nm Amax: ≤0.3
Merck :14,2779
BRN :3590083
Stability :Stable, but hygroscopic. Incompatible with strong oxidizing agents.
InChIKey :OGMADIBCHLQMIP-UHFFFAOYSA-N
LogP :-2.14 at 25℃
CAS DataBase Reference :156-57-0(CAS DataBase Reference)
EPA Substance Registry System :Cysteamine hydrochloride (156-57-0)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501 H317 May cause an allergic skin reaction Sensitisation, Skin Category 1 Warning P261, P272, P280, P302+P352,P333+P313, P321, P363, P501 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P280 Wear protective gloves/protective clothing/eye protection/face protection. P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P302+P352 IF ON SKIN: wash with plenty of soap and water. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.