CAS No.: 97-67-6 Synonyms: ( S )-(−)-2-Hydroxysuccinic acid; L-Hydroxybutanedioic acid Formula: C₄H₆O₅ Formula Weight: 134.09 Linear Formula: HO₂CCH₂CH(OH)CO₂H MDL No.: MFCD00064213 Melting Point: 101-103 °C(lit.)