乳酸

可先转化为丙交酯，再用于制造 PLA 的上游原料。

化学式
C3H6O3
官能团
Alcohol and carboxylic acid
摩尔质量
90.08 g/mol
Also known as
2-羟基丙酸

概览

2-羟基丙酸

工业发酵可将植物来源的糖转化为乳酸。其羟基和羧基可形成酯键。所选路线继续经过丙交酯中间体；通用结构式省略了立体化学。

Identifiers

化学式
C3H6O3
官能团
Alcohol and carboxylic acid
摩尔质量
90.08 g/mol
Also known as
2-羟基丙酸
化学标识符
SMILES
CC(O)C(=O)O
InChI
InChI=1S/C3H6O3/c1-2(4)3(5)6/h2,4H,1H3,(H,5,6)
PubChem CID
612

性质

熔点
16.8 °C
沸点
122 °C at 15 mm Hg
密度
1.2060 g/cu cm at 21 °C
水中溶解度
Miscible with water

Related compounds

参考文献

  1. Ingeo technology: sugars, lactic acid, lactide and PLANatureWorks
  2. PubChem: Lactic acidNational Center for Biotechnology Information

    Identity retrieved 2026-09-08; matched against the record's isomeric structure. Unspecified stereochemistry remains unspecified.

  3. Hazardous Substances Data Bank (HSDB): Lactic acid — melting pointHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/612#section=Melting-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: O'Neil, M.J. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. Cambridge, UK: Royal Society of Chemistry, 2013., p. 990

  4. Hazardous Substances Data Bank (HSDB): Lactic acid — boiling pointHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/612#section=Boiling-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Haynes, W.M. (ed.). CRC Handbook of Chemistry and Physics. 95th Edition. CRC Press LLC, Boca Raton: FL 2014-2015, p. 3-336

  5. Hazardous Substances Data Bank (HSDB): Lactic acid — densityHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/612#section=Density. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Haynes, W.M. (ed.). CRC Handbook of Chemistry and Physics. 95th Edition. CRC Press LLC, Boca Raton: FL 2014-2015, p. 3-336

  6. Hazardous Substances Data Bank (HSDB): Lactic acid — solubilityHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/612#section=Solubility. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Lewis, R.J. Sr.; Hawley's Condensed Chemical Dictionary 15th Edition. John Wiley & Sons, Inc. New York, NY 2007., p. 736