Description

1,4-Dihydroxy-2-butene (CAS No. 110-64-5) is a high-purity organic compound with the molecular formula C₄H₈O₂. This versatile diol is available in both cis and trans isomeric forms, with applications spanning polymer synthesis, pharmaceutical intermediates, and specialty chemical manufacturing. Our premium-grade product undergoes rigorous QC testing to ensure ≥98% purity (HPLC), with low levels of residual solvents and heavy metals (<10 ppm). Supplied as a colorless to pale yellow viscous liquid (stabilized with 0.1% BHT), it features excellent solubility in water, alcohols, and polar organic solvents. Ideal for researchers developing novel polyesters, crosslinking agents, or bioactive molecules. Technical specifications include: molecular weight 88.11 g/mol, density 1.07 g/cm³ at 20°C, boiling point 234°C, and flash point 129°C (closed cup). Packaged under nitrogen in amber glass bottles or HDPE drums with certified COA and MSDS documentation.

Properties

• CAS Number: 110-64-5
• Complexity: 34.8
• IUPAC Name: (E)-but-2-ene-1,4-diol
• InChI: InChI=1S/C4H8O2/c5-3-1-2-4-6/h1-2,5-6H,3-4H2/b2-1+
• InChI Key: ORTVZLZNOYNASJ-OWOJBTEDSA-N
• Exact Mass: 88.052429494
• Molecular Formula: C4H8O2
• Molecular Weight: 88.11
• SMILES: C(/C=C/CO)O
• Topological: 40.5
• Monoisotopic Mass: 88.052429494
• Physical Description: Nearly colorless, odorless liquid; Faintly yellow-green clear viscous liquid;
• Color/Form: ALMOST COLORLESS LIQUID
• Odor: ODORLESS
• Boiling Point: 141-149 °C AT 20 MM HG
• Melting Point: 7 °C
• Flash Point: 128 °C
• Solubility: VERY SOL IN WATER, ETHYL ALCOHOL, ACETONE; SPARINGLY SOL IN BENZENE
• Density: 1.067-1.074
• Vapor Density: 3.0
• Vapor Pressure: 0.04 [mmHg]
• Refractive Index: INDEX OF REFRACTION: 1.476-1.478 AT 25 °C/D
• Synonyms: 2-Butene-1,4-diol, 821-11-4, (E)-but-2-ene-1,4-diol, trans-2-Butene-1,4-diol, 2-butene-1,4-diol, (2E)-, Penitricin C, 110-64-5, Agrisynth B2D, 2-Buten-1,4-diol, (2E)-but-2-ene-1,4-diol, Caswell No. 120, Butenediol, 1,4-Butenediol, 2-Butene, 1,4-dihydroxy-, HSDB 5540, NSC 1260, EINECS 203-787-0, 1,4-DIHYDROXY-2-BUTENE, EPA Pesticide Chemical Code 220100, AI3-07551, 2-Butene-1,4-diol, (E)-, 0P6354W2W1, DTXCID90809569, EC 203-787-0, 2-BUTENE-1,4-DIOL, TRANS-, 2I323Z5567, DTXSID9026849, NSC-976, NSC-1260, 1,4butenediol, 2Butene1,4diol, 2Buten1,4diol, 2Butene, 1,4dihydroxy, 2-butene-1, 4-diol, BUTENEDIOL [INCI], cis-2-butene-1, 4-diol, 1,4-DIHYDROXYBUTENE, 1,4-DIHYDROXY-2-BUTENE [HSDB], 617-300-8, rac-2-Butene-1,4-diol, Z/E-But-2-ene-1,4-dio, (2E)-2-Butene-1,4-diol, 2-BUTENE-1,4-DIOL (TRANS), 2-Butene-1,4-diol(cis+trans), 2-Butene-1,4-diol,c&t, (E)-2-Butene-1,4-diol, (2E)-2-Butene-1,4-diol #, trans-1,4-Dihydroxy-2-butene, UNII-0P6354W2W1, UNII-2I323Z5567, Trans-2-buten-1,4-diol, trans 2-butene-1,4-diol, (e)-2-buten-1,4-diol, SCHEMBL41218, trans-but-2-ene-1,4-diol, CHEMBL3188586, DTXSID801033684, Tox21_202430, STL453720, AKOS000121146, NCGC00249224-01, NCGC00259979-01, AS-58110, CAS-110-64-5, B3384, CS-0130476, EN300-27217, Q27237056, Z237581088

1,4-Dihydroxy-2-butene serves as a key monomer for unsaturated polyester resins and biodegradable polymers. In pharmaceutical synthesis, it functions as a chiral building block for antiviral and anticancer drug intermediates. The compound’s dual hydroxyl groups enable efficient crosslinking in polyurethane and epoxy formulations. Researchers also utilize it as a precursor for tetrahydrofuran derivatives and specialty surfactants.

Safety and Hazards

GHS Hazard Statements

• H302: Harmful if swallowed [Warning Acute toxicity, oral]
• H402: Harmful to aquatic life [Hazardous to the aquatic environment, acute hazard]
• H412: Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]

Precautionary Statements

• P264, P270, P273, P301+P317, P330, and P501

Hazard Classes and Categories

• Acute Tox. 4 (100%)
• Skin Irrit. 2 (91.3%)
• Eye Irrit. 2 (89.1%)
• STOT SE 3 (84.8%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.