627-21-4
pent-2-yne
CAS: 627-21-4
Molecular Formula: C5H8
627-21-4 - Names and Identifiers
| Name | pent-2-yne |
| Synonyms | 2-PENTYNE pent-2-yne Valerylene C2H5CequivCCH3 ETHYLMETHYLACETYLENE 1-Ethyl-2-methylacetylene |
| CAS | 627-21-4 |
| EINECS | 210-989-2 |
| InChI | InChI=1/C5H8/c1-3-5-4-2/h3H2,1-2H3 |
627-21-4 - Physico-chemical Properties
| Molecular Formula | C5H8 |
| Molar Mass | 68.12 |
| Density | 0.721g/cm3 |
| Melting Point | -109 °C (lit.) |
| Boling Point | 56.7°C at 760 mmHg |
| Flash Point | −23 °F |
| Vapor Presure | 237mmHg at 25°C |
| Appearance | Form Liquid, color Clear colorless to slightly yellow |
| Storage Condition | Flammables area |
| Refractive Index | 1.406 |
| MDL | MFCD00009380 |
627-21-4 - Risk and Safety
| Hazard Symbols | Xi - Irritant F+ - Highly flammable  |
| Risk Codes | R11 - Highly Flammable R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S16 - Keep away from sources of ignition. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
| UN IDs | 3295 3/PG 2 |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 10-23 |
| HS Code | 29012900 |
| Hazard Class | 3 |
| Packing Group | II |
627-21-4 - Upstream Downstream Industry
627-21-4 - Nature
| Vapor pressure | 393mm Hg ( 37.7 °C) |
| refractive index | n20/D 1.404(lit.) |
| flash point | −23 °F |
| storage conditions | Flammables area |
| morphology | Liquid |
| color | Clear colorless to slightly yellow |
| Specific gravity | 0.711 |
| explosion limit value (explosive limit) | 1.2-8.8%(V) |
| BRN | 1696938 |
Last Update：2024-04-10 22:29:15
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View History
627-21-4
2-[2-(1,3-dioxolan-2-yl)-1-phenylethyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
6,7-dimethoxy-3,4-dihydro-2H-isoquinoline-1-thione
1-(3-ethoxypropyl)-2-imino-8-methyl-3-[(4-methylphenyl)sulfonyl]-1,2-dihydro-5H-dipyrido[1,2-a:2,3-d]pyrimidin-5-one
H-DAB(FMOC)-OH
3-Methoxycarbonyl-4-thianone
445237-85-4
29483-47-4
methyl 2-[({[5-(2-furyl)-4-phenyl-4H-1,2,4-triazol-3-yl]thio}acetyl)amino]benzoate
BTTB
2-[2-(1,3-dioxolan-2-yl)-1-phenylethyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
6,7-dimethoxy-3,4-dihydro-2H-isoquinoline-1-thione
1-(3-ethoxypropyl)-2-imino-8-methyl-3-[(4-methylphenyl)sulfonyl]-1,2-dihydro-5H-dipyrido[1,2-a:2,3-d]pyrimidin-5-one
H-DAB(FMOC)-OH
3-Methoxycarbonyl-4-thianone
445237-85-4
29483-47-4
methyl 2-[({[5-(2-furyl)-4-phenyl-4H-1,2,4-triazol-3-yl]thio}acetyl)amino]benzoate
BTTB
Raw Materials for 627-21-4
Downstream Products for 627-21-4