A5402112
2-Methyl-3-butyn-2-ol , 98% , 115-19-5
Synonym(s):
2-Methyl-3-butyne-ol;3-Methyl-1-butyne-3-ol;Dimethyl ethynyl carbinol
CAS NO.：115-19-5
Empirical Formula: C5H8O
Molecular Weight: 84.12
MDL number: MFCD00004467
EINECS: 204-070-5
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 3 °C |
| Boiling point: | 104 °C(lit.) |
| Density | 0.868 g/mL at 25 °C(lit.) |
| vapor pressure | 15 mm Hg ( 20 °C) |
| refractive index | n |
| Flash point: | 77 °F |
| storage temp. | Store below +30°C. |
| solubility | Fully miscible. |
| pka | 13.34±0.29(Predicted) |
| form | Powder or Crystals |
| color | White to yellow-beige to brown |
| PH | 7 (H2O, 20℃) |
| explosive limit | 1.8-16%(V) |
| Water Solubility | miscible |
| Merck | 14,6034 |
| BRN | 635746 |
| Henry's Law Constant | 2.5×100 mol/(m3Pa) at 25℃, Altschuh et al. (1999) |
| Stability: | Stable. Flammable. Incompatible with strong oxidizing agents. |
| InChI | 1S/C5H8O/c1-4-5(2,3)6/h1,6H,2-3H3 |
| InChIKey | CEBKHWWANWSNTI-UHFFFAOYSA-N |
| SMILES | CC(C)(O)C#C |
| LogP | 0.318 at 20-25℃ |
| CAS DataBase Reference | 115-19-5(CAS DataBase Reference) |
| NIST Chemistry Reference | 3-Butyn-2-ol, 2-methyl-(115-19-5) |
| EPA Substance Registry System | 2-Methyl-3-butyn-2-ol (115-19-5) |
Description and Uses
2-Methyl-3-butyn-2-ol is used as an intermediate in the manufacture of products for the agrochemical and specialty chemical industry.
Safety
| Symbol(GHS) |     GHS02,GHS05,GHS07,GHS08 |
| Signal word | Danger |
| Hazard statements | H302-H318-H361-H336-H226 |
| Precautionary statements | P501-P270-P202-P240-P261-P210-P233-P201-P243-P241-P242-P271-P264-P280-P370+P378-P308+P313-P303+P361+P353-P301+P312+P330-P304+P340+P312-P305+P351+P338+P310-P403+P233-P403+P235-P405 |
| target organs | Central nervous system |
| PPE | Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter |
| Hazard Codes | Xn |
| Risk Statements | 10-22-41 |
| Safety Statements | 26-39-16 |
| RIDADR | UN 1987 3/PG 2 |
| WGK Germany | 1 |
| RTECS | ES0810000 |
| Autoignition Temperature | 662 °F |
| TSCA | TSCA listed |
| HazardClass | 3 |
| PackingGroup | II |
| HS Code | 29052990 |
| Storage Class | 3 - Flammable liquids |
| Hazard Classifications | Acute Tox. 4 Oral Eye Dam. 1 Flam. Liq. 2 Repr. 2 STOT SE 3 |
| Toxicity | LD50 orally in Rabbit: 1420 mg/kg LD50 dermal Rat > 2000 mg/kg |
| REACH Registrations | Active |
