Product Name

  • Name

    BENZENEACETIC ACID, ALPHA-CYCLOHEXYL-ALPHA-HYDROXY-, 4-(DIETHYLAMINO)-1,1-DIMETHYL-2-BUTYNYL ESTER, HYDROCHLORIDE

  • EINECS
  • CAS No. 129927-33-9
  • Density g/cm3
  • Solubility
  • Melting Point
  • Formula C24H35NO3•ClH
  • Boiling Point 508.9°Cat760mmHg
  • Molecular Weight 422.06
  • Flash Point 261.6°C
  • Transport Information
  • Appearance
  • Safety Experimental reproductive effects. When heated to decomposition it emits toxic vapors of NOx and HCl.
  • Risk Codes
  • Molecular Structure Molecular Structure of 129927-33-9 (BENZENEACETIC ACID, ALPHA-CYCLOHEXYL-ALPHA-HYDROXY-, 4-(DIETHYLAMINO)-1,1-DIMETHYL-2-BUTYNYL ESTER, HYDROCHLORIDE)
  • Hazard Symbols
  • Synonyms BENZENEACETIC ACID, ALPHA-CYCLOHEXYL-ALPHA-HYDROXY-, 4-(DIETHYLAMINO)-1,1-DIMETHYL-2-BUTYNYL ESTER, HYDROCHLORIDE
  • PSA 49.77000
  • LogP 4.92350

NS-21 Chemical Properties


IUPAC Name: [5-(Diethylamino)-2-methylpent-3-yn-2-yl]2-cyclohexyl-2-hydroxy-2-phenylacetate hydrochloride
Empirical Formula: C24H36ClNO3
Molecular Weight: 422.0005 g/mol
Flash Point: 261.6 °C
Enthalpy of Vaporization: 82.06 kJ/mol
Boiling Point: 508.9 °C at 760 mmHg
Vapour Pressure: 3.53E-11 mmHg at 25 °C 
Classification Code of NS-21 (CAS NO.129927-33-9): Drug / Therapeutic Agent; Reproductive Effect

NS-21 Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
rat LD50 oral 735mg/kg (735mg/kg) SENSE ORGANS AND SPECIAL SENSES: MYDRIASIS (PUPILLARY DILATION): EYE
BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)
GASTROINTESTINAL: CHANGES IN STRUCTURE OR FUNCTION OF SALIVARY GLANDS
Journal of Toxicological Sciences. Vol. 22(Suppl,

NS-21 Safety Profile

Experimental reproductive effects. When heated to decomposition NS-21 (CAS NO.129927-33-9) emits toxic vapors of NOx and HCl.

NS-21 Specification

 NS-21 ,its cas register number is 129927-33-9. It also can be called Urespan ; Temiverine HCl ; and Temiverine hydrochloride .

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