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2-Pentyne

2-Pentyne structure

CAS No:
627-21-4
Formula:
C5H8
Chemical Name:
2-Pentyne
Synonyms:
2-Pentyne;1-Ethyl-2-methylacetylene;Ethylmethylacetylene;Methyl ethyl acetylene
Categories:
Chemical Reagents > Organic Reagents

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Description

clear colorless to slightly yellow liquid

2-Pentyne Basic Attributes

Molecular Weight：

68.12

Exact Mass：

68.12

BRN：

1696938

EC Number：

210-989-2

UNII：

57NG6HKI9D

DSSTox ID：

DTXSID80211758

HScode：

29012900

Characteristics

PSA：

XLogP3：

1.99

Appearance：

Clear colorless to slightly yellow Liquid

Density：

0.7115 g/cm³ @ Temp: 20 °C

Melting Point：

-109.3 °C

Boiling Point：

56.1 °C

Flash Point：

−23 °F

Refractive Index：

1.407

Storage Conditions：

Flammables area

Vapor Pressure：

393 mm Hg ( 37.7 °C)

Explosive limit：

1.2-8.8%(V)

Safety Information

Packing level：

Hazard category：

Transport codes：

UN 3295 3/PG 2

wgk germany：

hazard class code：

11-36/37/38

safety instructions：

16-26-36/37/39

Marks：

F,Xi

Precautionary statement(s)：

P210, P233, P240, P241, P242, P243, P261, P264, P271, P280, P301+P310, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P312, P321, P331, P332+P313, P337+P313, P362, P370+P378, P403+P233, P403+P235, P405, P501

Hazard Statements：

H225

GHS Classification：

|Danger|H225 (100%): Highly Flammable liquid and vapor [Danger Flammable liquids]|P210, P233, P240, P241, P242, P243, P261, P264, P271, P280, P301+P310, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P312, P321, P331, P332+P313, P337+P313, P362, P370+P378, P403+P233, P403+P235, P405, and P501|Aggregated GHS information provided by 44 companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Computed Properties

Molecular Weight:68.12
XLogP3:1.9
Exact Mass:68.062600255
Monoisotopic Mass:68.062600255
Heavy Atom Count:5
Complexity:58.6
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes