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thiosemicarbazide Structure

thiosemicarbazide

Chemical Properties

Melting point 180-183 °C (dec.)(lit.)
Boiling point 208.6±23.0 °C(Predicted)
Density  1.221 (estimate)
vapor pressure  1.15Pa at 25℃
refractive index  1.5800 (estimate)
storage temp.  Store at +15°C to +25°C.
solubility  DMSO : 125 mg/mL (1371.52 mM; Need ultrasonic)
pka pK1:1.5(+1) (25°C,μ=0.1)
form  Powder
color  White to light yellow
PH 5-7 (50g/l, H2O, 20℃)
Water Solubility  soluble
Merck  14,9361
BRN  506320
Stability Stable. Incompatible with strong oxidizing agents.
InChIKey BRWIZMBXBAOCCF-UHFFFAOYSA-N
LogP -1.67
CAS DataBase Reference 79-19-6(CAS DataBase Reference)
NIST Chemistry Reference Hydrazinecarbothioamide(79-19-6)
EPA Substance Registry System Thiosemicarbazide (79-19-6)

Safety Information

Hazard Codes  T+
Risk Statements  28-52/53-26/27/28
Safety Statements  22-26-36/37-45-61-28A-36/37/39
RIDADR  UN 2811 6.1/PG 2
WGK Germany  3
RTECS  VT4200000
8-9-23
TSCA  Yes
HazardClass  6.1
PackingGroup  II
HS Code  29309070
HS Code  29335995
Hazardous Substances Data 79-19-6(Hazardous Substances Data)
Toxicity LD50 orally in adult Norway rats: 13 mg/kg, Dieke, Proc. Soc. Exp. Biol. Med. 70, 688 (1949)

MSDS

Usage And Synthesis

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