B103209

2-Butyne-1,4-diol

99%

• Synonym(s): 1,4-Butynediol, 1,4-Dihydroxy-2-butyne, 2-Butynediol, Bis(hydroxymethyl)acetylene
• Linear Formula: HOCH₂C≡CCH₂OH
• CAS Number: 110-65-6
• Molecular Weight: 86.09
• Beilstein: 1071237
• EC Number: 203-788-6
• MDL number: MFCD00002915
• UNSPSC Code: 12352100
• PubChem Substance ID: 24891548
• NACRES: NA.22

Properties

• vapor pressure: <0.1 mmHg ( 55 °C)
• Quality Level: 200
• Assay: 99%
• form: crystals
• bp: 238 °C (lit.)
• mp: 53-58 °C (lit.)
• SMILES string: OCC#CCO
• InChI: 1S/C4H6O2/c5-3-1-2-4-6/h5-6H,3-4H2
• InChI key: DLDJFQGPPSQZKI-UHFFFAOYSA-N

Description

Application

2-Butyne-1,4-diol is extensively used in the cycloaddition reactions such as the homologation method for the preparation of substituted acenes, rhodium and iridium-catalyzed [2+ 2+ 2] inter and intramolecular cyclotrimerization. It can also be used in the total synthesis of (−)-isolaurallene, (−)-amphidinolide P and bistramide A.

Safety Information

• Pictograms: GHS06,GHS08,GHS05
• Signal Word: Danger
• Hazard Statements: H301 + H311 + H331,H314,H317,H373
• Precautionary Statements: P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P314
• Hazard Classifications: Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Eye Dam. 1 - Skin Corr. 1B - Skin Sens. 1 - STOT RE 2
• Storage Class Code: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• WGK: WGK 2
• Flash Point(F): 305.6 °F - closed cup
• Flash Point(C): 152 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves