Product Name

  • Name

    (S)-1,2-Butanediol

  • EINECS
  • CAS No. 73522-17-5
  • Article Data9
  • CAS DataBase
  • Density 1.001 g/cm3
  • Solubility
  • Melting Point
  • Formula C4H10O2
  • Boiling Point 190.3 °C at 760 mmHg
  • Molecular Weight 90.1222
  • Flash Point 93.3 °C
  • Transport Information
  • Appearance
  • Safety 26-36
  • Risk Codes 36
  • Molecular Structure Molecular Structure of 73522-17-5 ((S)-1,2-Butanediol)
  • Hazard Symbols
  • Synonyms 1,2-Butanediol,(S)-;(+)-1,2-Butanediol;(S)-1,2-Butanediol;
  • PSA 40.46000
  • LogP -0.25040

(S)-1,2-Butanediol Specification

The (S)-1,2-Butanediol, with the CAS registry number 73522-17-5, is also known as 1,2-Butanediol, (2S)-. This chemical's molecular formula is C4H10O2 and molecular weight is 90.12. What's more, its systematic name is called (2S)-Butane-1,2-diol. 

Physical properties about this chemical are: (1) ACD/LogP: -0.81; (2) # of Rule of 5 Violations: 0; (3) #H bond acceptors: 2; (4) #H bond donors: 2; (5) #Freely Rotating Bonds: 4; (6) Polar Surface Area: 18.46 Å2; (7) Index of Refraction: 1.437; (8) Molar Refractivity: 23.6 cm3; (9) Molar Volume: 89.9 cm3; (10) Surface Tension: 37.1 dyne/cm; (11) Density: 1.001 g/cm3; (12) Flash Point: 93.3 °C; (13) Enthalpy of Vaporization: 49.64 kJ/mol; (14) Boiling Point: 190.3 °C at 760 mmHg; (15) Vapour Pressure: 0.148 mmHg at 25 °C.

Preparation of (S)-1,2-Butanediol: this chemical is prepared by reaction of 1,2-Diacetoxy-butane.



The reaction occurs with reagent Methanol, CHCl3 and at ambient temperature for 120 hours. The yield is 53%.

Uses of (S)-1,2-Butanediol: it is used to produce other chemicals. For example, it is used to produce 1,1'-Oxybisbutan-2-ol.



This reaction needs reagent Na at ambient temperature. The reaction time is 16 hours. The yield is 60%.

You can still convert the following datas into molecular structure:
(1) SMILES: O[C@@H](CC)CO
(2) InChI: InChI=1/C4H10O2/c1-2-4(6)3-5/h4-6H,2-3H2,1H3/t4-/m0/s1
(3) InChIKey: BMRWNKZVCUKKSR-BYPYZUCNBC

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