CAS No 515-30-0 , DL-Atrolactic acid hemihydrate Search by region : Germany

Name: DL-Atrolactic acid hemihydrate
Synonyms: (+/-)-2-Hydroxy-2-phenylpropionic acid hemihydrate;alpha-Hydroxy-2-methylbenzeneacetic acid; 97%; 2-phenyllactic acid; Atrolactic acid; (+/-)-Atrolactic acid hemihydrate~(+/-)-2-Phenyllactic acid hemihydrate;DL-Atrolactic acid hemihydrate; Atrolacticacid;
CAS Registry Number:515-30-0
Flash Point: 165.9°C
Boiling Point: 327.2°Cat760mmHg
Density: 1.261g/cm³
Safety Statements: 22-24/25
Flash Point: 165.9°C
EINECS: 208-196-1
Molecular Weight: 175.18
InChI: InChI=1/C9H10O3/c1-9(12,8(10)11)7-5-3-2-4-6-7/h2-6,12H,1H3,(H,10,11)
Risk Statements: S24/25:Avoidcontactwithskinandeyes.;
Molecular Formula: C9H10O3.0.5H2O
Molecular Structure:

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References of DL-Atrolactic acid hemihydrate

Title: Atrolactic Acid
CAS Registry Number: 515-30-0
CAS Name: a-Hydroxy-a-methylbenzeneacetic acid
Synonyms: a-methylmandelic acid; 2-phenyllactic acid; a-hydroxy-a-phenylpropionic acid; 2-hydroxy-2-phenylpropionic acid; 2-phenyl-2-hydroxypropionic acid
Molecular Formula: C9H10O3
Molecular Weight: 166.17
Percent Composition: C 65.05%, H 6.07%, O 28.88%
Literature References: Prepd from acetophenone cyanohydrin: McKenzie, Clough, J. Chem. Soc. 101, 393 (1912); Freudenberg et al., Ann. 501, 213 (1932); Eliel, Freeman, Org. Synth. coll. vol. IV, 58 (1963).

Derivative Type: DL-Form, hemihydrate
Properties: Orthorhombic crystals from water, mp 88-90° (softening at 75°). Anhydr, mp 94.5° (obtained by drying the hemihydrate at 55° and 0.5 mm Hg). pKa (25°): 3.467. Soly of the anhydr acid in one liter of water at 18° = 17.04 g, at 25° = 21.17 g, at 30° = 25.65 g. Much more sol in boiling water. Slightly sol in petr ether.
Melting point: mp 88-90° (softening at 75°); Anhydr, mp 94.5° (obtained by drying the hemihydrate at 55° and 0.5 mm Hg)
pKa: pKa (25°): 3.467