3-Methyl-2-buten-1-ol CAS 556-82-1
Introduction：Basic information about 3-Methyl-2-buten-1-ol CAS 556-82-1, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
3-Methyl-2-buten-1-ol Basic information
| Product Name: | 3-Methyl-2-buten-1-ol |
| Synonyms: | 3-methyl-2-buten-1-o;3-Methyl-2-butenol;3-Methyl-2-butenyl alcohol;3-methyl-but-2-en-1-ol;3-methylbut-2-en-1-ol;dimethylallylalcohol;gamma,gamma-Dimethylallyl alcohol;gamma,gamma-dimethylallylalcohol |
| CAS: | 556-82-1 |
| MF: | C5H10O |
| MW: | 86.13 |
| EINECS: | 209-141-4 |
| Product Categories: | Pesticides intermediate |
| Mol File: | 556-82-1.mol |
3-Methyl-2-buten-1-ol Chemical Properties
| Melting point | 43.52°C |
| Boiling point | 140 °C(lit.) |
| density | 0.848 g/mL at 25 °C(lit.) |
| vapor pressure | 1.4 mm Hg ( 20 °C) |
| refractive index | n |
| FEMA | 3647 | 3-METHYL-2-BUTEN-1-OL |
| Fp | 110 °F |
| storage temp. | Sealed in dry,2-8°C |
| solubility | 64g/l |
| form | Liquid |
| pka | 14.83±0.10(Predicted) |
| color | Clear colorless to very slightly yellow |
| Odor | at 100.00 %. fruity green lavender |
| Odor Type | fruity |
| biological source | synthetic |
| explosive limit | 2.7-16.3%(V) |
| Water Solubility | 170 g/L (20 ºC) |
| JECFA Number | 1200 |
| BRN | 1633479 |
| Cosmetics Ingredients Functions | PERFUMING |
| InChI | 1S/C5H10O/c1-5(2)3-4-6/h3,6H,4H2,1-2H3 |
| InChIKey | ASUAYTHWZCLXAN-UHFFFAOYSA-N |
| SMILES | C\C(C)=C\CO |
| LogP | 1.24 |
| CAS DataBase Reference | 556-82-1(CAS DataBase Reference) |
| NIST Chemistry Reference | 2-Buten-1-ol, 3-methyl-(556-82-1) |
| EPA Substance Registry System | 2-Buten-1-ol, 3-methyl- (556-82-1) |
Safety Information
| Hazard Codes | Xn |
| Risk Statements | 10-22-36/37/38-38-21/22 |
| Safety Statements | 26-36-37-23-16 |
| RIDADR | UN 1987 3/PG 3 |
| WGK Germany | 1 |
| RTECS | EM9472500 |
| TSCA | TSCA listed |
| HazardClass | 3 |
| PackingGroup | III |
| HS Code | 29052990 |
| Storage Class | 3 - Flammable liquids |
| Hazard Classifications | Acute Tox. 4 Inhalation Acute Tox. 4 Oral Eye Dam. 1 Flam. Liq. 3 Skin Corr. 1B STOT SE 3 |
| Description | 3-Methyl-2-buten-l-ol has a phenolic, metallic odor bearing a resemblance to iron gallate ink. May be synthesized from isoprene by hydration via prenyl acetate or by rearrangement of 3-methyll-buten-3-ol. |
| Chemical Properties | 3-Methyl-2-buten-1-ol has a phenolic, metallic odor bearing a resemblance to iron gallate ink |
| Chemical Properties | clear colourless to very slightly yellow liquid |
| Uses | 3-Methyl-2-buten-1-ol is used as a reagent for protection of carboxylic acids as their 3-methyl-2-buten-1-yl (Prenyl) esters. It is also used in perfumery. |
| Uses | 3-Methyl-2-buten-1-ol was used as starting reagent during asymmetric total syntheses of (R)-(+)- and (S)-(-)-umbelactone via Sharpless asymmetric epoxidation reaction. |
| Definition | ChEBI: Prenol is an alkenyl alcohol and a member of prenols. |
| General Description | 3-Methyl-2-buten-1-ol reacts with nitrosocarbonyl benzene to yield 5-hydroxy-isoxazolidines. It is commonly used as fragrance ingredient. |
| Flammability and Explosibility | Flammable |
| Synthesis | Prenol's two synthesis methods: 1) from Isoprene by hydration via Phenylacetate. 2) from Dimethyl vinylcarbinol with diluted Sulfuric acid. |
3-Methyl-2-buten-1-ol Preparation Products And Raw materials
| Raw materials | tert-Butanol-->Paraformaldehyde-->Isobutylene-->Isoprene-->3-Methyl-1-butene |
| Preparation Products | METHYL 3-(2,2-DICHLOROVINYL)-2,2-DIMETHYL-(1-CYCLOPROPANE)CARBOXYLATE-->Cyfluthrin-->ethyl 3-(2,2-dichlorovinyl)-2,2-dimethyl-1-cyclopropanecarboxylate-->Methyl 3,3-dimethylpent-4-enoate-->3-METHYL-3-BUTEN-1-OL-->Isopentyl ether-->Permethric acid-->Cyclopropanemethanol, 2,2-dimethyl-3-(2-methyl-1-propen-1-ylidene)- |
