4-PENTYN-2-OL
Synonym(s):(±)-4-Pentyn-2-ol
- CAS NO.：2117-11-5
- Empirical Formula: C5H8O
- Molecular Weight: 84.12
- MDL number: MFCD00004555
- EINECS: 218-321-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 05:16:38
What is 4-PENTYN-2-OL?
Chemical properties
4-PENTYN-2-OL is clear colorless to pale yellow liquid
The Uses of 4-PENTYN-2-OL
4-PENTYN-2-OL is used in QSAR studies pertaining to toxicity levels of organic compounds in environmental situations.
The Uses of 4-PENTYN-2-OL
4-Pentyn-2-ol is used in Quantitative structure activity relationship (QSAR) studies pertaining to toxic levels of organic compounds in environmental situations. It is also used in the preparation of Fischer-type rhenium(III) benzoyldiazenido-2-oxacyclocarbenes. Further, it is used in the preparation of C-aryl glycosides by undergoing cycloaddition reaction with an aryl nitrile oxide.
General Description
4-Pentyn-2-ol, a secondary homopropargylic alcohol, is toxic with LC50 value of 160.
Properties of 4-PENTYN-2-OL
| Melting point: | -24.1°C (estimate) |
| Boiling point: | 126-127 °C (lit.) |
| Density | 0.892 g/mL at 25 °C (lit.) |
| refractive index | n |
| Flash point: | 99 °F |
| storage temp. | Flammables area |
| solubility | Miscible with chloroform and ethyl acetate. |
| form | Liquid |
| pka | 14.29±0.20(Predicted) |
| Specific Gravity | 0.892 |
| color | Clear colorless to pale yellow |
| BRN | 1734245 |
| CAS DataBase Reference | 2117-11-5(CAS DataBase Reference) |
Safety information for 4-PENTYN-2-OL
| Signal word | Warning |
| Pictogram(s) |
 Flame Flammables GHS02  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H226:Flammable liquids H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P240:Ground/bond container and receiving equipment. P241:Use explosion-proof electrical/ventilating/lighting/…/equipment. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 4-PENTYN-2-OL
New Products
2-(2-Chlorophenyl)glycine Propiolic Acid 1-(3-Hydroxy-4-methoxyphenyl)-2-nitroethene (±)-amino(2-fluorophenyl)acetic acid trans-3-Benzyloxy-4-methoxy-beta-nitrostyrene 1-Pentadecanol 2,4-Dihydroxybenzaldehyde Dipropyl disulfide Pyrrolo[1,2-a]pyrimidine-6-carboxylic acid, 4,6,7,8-tetrahydro-4-oxo-, sodium salt (1:1), (6S) Obidoxime hydrochloride API 4 pentyn 1 ol N-Vinylformamide Methacrylate-PEG-Methacrylate, Mn:35000 2,4-Dihydroxyacetophenone 2-Chloro 5-Fluoro Pyridine Vasicinone 2-Chloroisonicotinic Acid Tween 80 or Polysorbate 80 2-Butyn-1-oL N-(4-Cyano-3-(trifluoromethyl)phenyl)-2-methyloxirane-2-carboxamide N-(4-fluoro-2-methoxy-5-nitrophenyl)-4-(1-methyl-1H-indol-3-yl)pyrimidin-2-amine Pirtobrutinib intd. 2-Pentyn-1-oL 4-NitrobenzotrifluorideRelated products of tetrahydrofuran
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