8.01537

2-Butyne-1,4-diol

(not stabilised) for synthesis

• Synonym(s): 2-Butyne-1,4-diol, 1,4-Dimethoxyacetylene
• Empirical Formula (Hill Notation): C₄H₆O₂
• CAS Number: 110-65-6
• Molecular Weight: 86.09
• UNSPSC Code: 12352104
• EC Index Number: 203-788-6
• NACRES: NA.22
• MDL number: MFCD00002915
• Assay: ≥99.0% (GC)
• Form: solid

Properties

• Quality Segment: 200
• vapor pressure: <1 Pa ( 20 °C)
• assay: ≥99.0% (GC)
• form: solid
• autoignition temp.: 410 °C
• potency: 100 mg/kg LD₅₀, oral (Rat)
• pH: 4-7.5 (23 °C, 100 g/L in H₂O)
• bp: 125-127 °C/3 hPa
• mp: 54-57 °C
• transition temp: flash point 152 °C
• solubility: 3740 g/L
• density: 1.11 g/cm³ at 20 °C
• bulk density: 500 kg/m³
• storage temp.: 2-30°C
• SMILES string: OCC#CCO
• InChI: 1S/C4H6O2/c5-3-1-2-4-6/h5-6H,3-4H2
• InChI key: DLDJFQGPPSQZKI-UHFFFAOYSA-N

Description

Analysis Note

Assay (GC, area%): ≥ 99.0 % (a/a)
Melting range (lower value): ≥ 54 °C
Melting range (upper value): ≤ 57 °C
Identity (IR): passes test

Safety Information

• pictograms: GHS05,GHS06,GHS08
• signalword: Danger
• hcodes: H301 + H311 + H331 - H314 - H317 - H373
• pcodes: 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: 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