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CAS No 75-86-5 , 2-hydroxy-2-methylpropanenitrile

  • Name: 2-hydroxy-2-methylpropanenitrile
  • Synonyms: 2-hydroxy-2-methylpropanenitrile; 2-Methyllactonitrile; 2-Hydroxyisobutyronitrile; alpha-Hydroxyisobutyronitrile;2-Hydroxy-2-methylpropanenitrile; Acetone cyanhydrin;
  • CAS Registry Number:
  • Transport: UN 1541
  • Melting Point: -19 ºC
  • Flash Point: 73 ºC
  • Boiling Point: 82 ºC (23 MMHG)
  • Density: 0.932
  • Refractive index: 20/D 1.399(lit.)
  • Water Solubility: MISCIBLE
  • Safety Statements: R26/27/28;R50
  • Hazard Symbols: N: Dangerous for the environment;T+: Very toxic;
  • HS Code: 29269095
  • Flash Point: 73 ºC
  • EINECS: 200-909-4
  • Molecular Weight: 85.10448
  • InchiKey: MWFMGBPGAXYFAR-UHFFFAOYSA-N
  • InChI: InChI=1S/C4H7NO/c1-4(2,6)3-5/h6H,1-2H3
  • Risk Statements: S27;S45;S60;S61;S7/9
  • Molecular Formula: C4H7NO
  • Molecular Structure:CAS No:75-86-5 2-hydroxy-2-methylpropanenitrile
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75-86-5; 59182-86-4 acetone cyanohydrin

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75-86-5; 59182-86-4 Acetone cyanohydrin

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75-86-5; 59182-86-4 Acetone Cyanohydrin

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75-86-5; 59182-86-4 Acetone Cyanohydrin

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References of 2-hydroxy-2-methylpropanenitrile
Title: Acetone Cyanohydrin
CAS Registry Number: 75-86-5
CAS Name: 2-Hydroxy-2-methylpropanenitrile
Synonyms: 2-methyllactonitrile; a-hydroxyisobutyronitrile
Molecular Formula: C4H7NO
Molecular Weight: 85.10
Percent Composition: C 56.45%, H 8.29%, N 16.46%, O 18.80%
Line Formula: (CH3)2C(OH)CN
Literature References: Prepd by adding acetone to sodium or potassium cyanide in water and treating with H2SO4 at below 20°: Welch, Clemo, J. Chem. Soc. 1928, 2629; Cox, Stormont, Org. Synth. coll. vol. II, 7 (1943). Continuous production from HCN and aq acetone: G. Barsky, US 2731490 (1956). Toxicity study: H. F. Smyth et al., Am. Ind. Hyg. Assoc. J. 23, 95 (1962).
Properties: Liquid; d425 0.9267; d419 0.932. mp -19°. bp15 81°; bp20 88-90°; bp23 82°; bp760 95°. nD19 1.40002; nD15 1.3980. Freely sol in water and in the usual organic solvents. Practically insol in petr ether and carbon disulfide. Decomposes readily to form hydrogen cyanide, q.v., which is highly toxic. LD50 orally in rats: 0.17 g/kg (Smyth).
Melting point: mp -19°
Boiling point: bp15 81°; bp20 88-90°; bp23 82°; bp760 95°
Index of refraction: nD19 1.40002; nD15 1.3980
Density: d425 0.9267; d419 0.932
Toxicity data: LD50 orally in rats: 0.17 g/kg (Smyth)
CAUTION: Potential symptoms of overexposure are irritation of eyes, skin, respiratory system; dizziness, weakness, headache, confusion, convulsions; liver, kidney injury; pulmonary edema, asphyxia. See NIOSH Pocket Guide to Chemical Hazards (DHHS/NIOSH 97-140, 1997) p 4.
Use: In preparative organic chemistry for transcyanohydrination, such as preparing the 17-monocyanohydrin of a 3,17-diketo steroid by hydrogen cyanide exchange with the reagent, e.g. Ercoli, de Ruggieri, J. Am. Chem. Soc. 75, 650 (1953).