Product Name

  • Name

    2-ETHYNYLPYRIDINE

  • EINECS -0
  • CAS No. 1945-84-2
  • Article Data46
  • CAS DataBase
  • Density 1.02 g/cm3
  • Solubility Soluble in water.
  • Melting Point 77-78 °C
  • Formula C7H5N
  • Boiling Point 170.5 °C at 760 mmHg
  • Molecular Weight 103.123
  • Flash Point 57.5 °C
  • Transport Information
  • Appearance clear dark brown liquid
  • Safety 26-36-37/39
  • Risk Codes 36/37/38
  • Molecular Structure Molecular Structure of 1945-84-2 (2-ETHYNYLPYRIDINE)
  • Hazard Symbols IrritantXi
  • Synonyms 2-Pyridinylethyne;2-Pyridylacetylene;2-Pyridylethyne;Pyridin-2-ylacetylene;
  • PSA 12.89000
  • LogP 1.06290

2-ETHYNYLPYRIDINE Chemical Properties

The molecular formula of 2-ETHYNYLPYRIDINE(1945-84-2) is C7H5N and its formula weight is 103.12.
The density of 2-ETHYNYLPYRIDINE(1945-84-2) is 1.021 g/mL at 25 °C(lit.)
and it has a melting point of  77-78°C. The boiling point is  85 °C12 mm Hg(lit.). The refractive index is about  1.56(lit.). Its flash point is  170 °F.
The chemical synonyms of 2-ETHYNYLPYRIDINE(1945-84-2) are TIMTEC-BB SBB006619;2-PYRIDYLACETYLENE;2-ETHYLNYL PYRIDINE;2-ETHYNYLPYRIDINE;2-ETHYNYLPYRIDINE STABILIZED 98%;2-ETHYNYLPYRIDINE, 98%, STAB. WITH 0.01% HYDROQUINONE;2-ETHYNYLPYRIDINE INHIBITED WITH 01% HYDROQUINONE;Pyridine, 2-ethynyl- (6CI, 7CI, 8CI, 9CI)
The molecular structure of 2-ETHYNYLPYRIDINE(1945-84-2):

2-ETHYNYLPYRIDINE Toxicity Data With Reference

RTECS#: CAS# 1945-84-2: None listed
LD50/LC50: RTECS: Not available. 
Carcinogenicity: 2-Ethynylpyridine - Not listed as a carcinogen by ACGIH, IARC, NTP, or CA Prop 65.
Other: The toxicological properties have not been fully investigated.

2-ETHYNYLPYRIDINE Safety Profile

Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36-37/39
WGK Germany  3

2-ETHYNYLPYRIDINE Specification

Chemical Stability: Stable. 
Conditions to Avoid: Incompatible materials, moisture, heat. 
Incompatibilities with Other Materials Oxidizing materials, acids. 
Hazardous Decomposition Products Nitrogen oxides, carbon monoxide, carbon dioxide. 
Hazardous Polymerization Will not occur.
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