Product Name

  • Name

    2-Pyrazinylethanethiol

  • EINECS
  • CAS No. 35250-53-4
  • Density 1.142 g/cm3
  • Solubility Partly soluble in water, soluble in most organic solvents.
  • Melting Point
  • Formula C6H8N2S
  • Boiling Point 241 °C at 760 mmHg
  • Molecular Weight 140.209
  • Flash Point 99.6 °C
  • Transport Information UN 2810 6.1/PG 3
  • Appearance
  • Safety 36/37-45
  • Risk Codes 25-36/37/38
  • Molecular Structure Molecular Structure of 35250-53-4 (2-Pyrazinylethanethiol)
  • Hazard Symbols ToxicT
  • Synonyms Pyrazineethanethiol(9CI);2-(Pyrazin-2-yl)ethanethiol;2-Pyrazinylethylmercaptan;2-Pyrazine ethanethiol;
  • PSA 64.58000
  • LogP 0.94890

Pyrazineethanethiol Chemical Properties

Molecular Structure of 2-Pyrazineethanethiol (CAS NO.35250-53-4):

IUPAC Name: 2-Pyrazin-2-ylethanethiol 
Molecular Formula: C6H8N2S
Molecular Weight: 140.21
FEMA: 3230 
Index of Refraction: 1.563
Molar Refractivity: 39.88 cm3
Molar Volume: 122.7 cm3
Surface Tension: 48.5 dyne/cm
Density: 1.142 g/cm3
Flash Point: 99.6 °C
Enthalpy of Vaporization: 45.86 kJ/mol
Boiling Point: 241 °C at 760 mmHg
Vapour Pressure: 0.0569 mmHg at 25 °C
storage temp.: Refrigerator
Canonical SMILES: C1=CN=C(C=N1)CCS
InChI: InChI=1S/C6H8N2S/c9-4-1-6-5-7-2-3-8-6/h2-3,5,9H,1,4H2
InChIKey: QKVWBAMZPUHCMO-UHFFFAOYSA-N
Product Categories: API intermediates; Pyrazines; Chloropyrazines, etc.; pyrazine Flavor

Pyrazineethanethiol Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
rat LD50 oral 158mg/kg (158mg/kg)   Food and Cosmetics Toxicology. Vol. 13, Pg. 487, 1975.

Pyrazineethanethiol Consensus Reports

Reported in EPA TSCA Inventory.

Pyrazineethanethiol Safety Profile

Poison by ingestion. When heated to decomposition it emits very toxic fumes of NOx and SOx.
Safety Information of 2-Pyrazineethanethiol (CAS NO.35250-53-4):
Hazard Codes: ToxicT
Risk Statements: 25-36/37/38
R25: Toxic if swallowed ;
R36/37/38: Irritating to eyes, respiratory system and skin ;
Safety Statements: 36/37-45
S36/37: Wear suitable protective clothing and gloves ;
S45: In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) ;
RIDADR: UN 2810 6.1/PG 3
WGK Germany: 3
RTECS: KJ2551000
HazardClass: 6.1
PackingGroup: III

Pyrazineethanethiol Specification

  2-Pyrazineethanethiol (CAS NO.35250-53-4), its Synonyms are 2-Pyrazinylethanethiol ; 2-Pyrazinylethylmercaptan ; Pyrazineethanethiol ; Pyrazinyl ethanethiol ; Ethanethiol, 2-pyrazinyl- ; 2-Mercaptoethyl pyrazine .

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