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CAS No 480-30-8 , 1,5-dimethyl-2-phenylpyrazol-3-one

  • Name: 1,5-dimethyl-2-phenylpyrazol-3-one
  • Synonyms: 2,2,2-trichloroethane-1,1-diol; Kloralfenazon;Dichloralphenazone;1,5-dimethyl-2-phenylpyrazol-3-one; 480-30-8; Dichloralantipyrin; Ibiodorm; Dormuphar; Welldorm; Sominat; Sedor;
  • CAS Registry Number:
  • Safety Statements: Moderately toxic by ingestion and intraperitoneal routes. When heated to decomposition it emits toxic fumes of Cl− and NOx. See also ANTIPYRINE and CHLORAL HYDRATE.
  • EINECS: 207-546-0
  • Molecular Weight: 519.03182
  • InchiKey: ATKXDQOHNICLQW-UHFFFAOYSA-N
  • InChI: InChI=1S/C11H12N2O.2C2H3Cl3O2/c1-9-8-11(14)13(12(9)2)10-6-4-3-5-7-10;2*
    3-2(4,5)1(6)7/h3-8H,1-2H3;2*1,6-7H
  • Molecular Formula: C15H18Cl6N2O5
  • Molecular Structure:CAS No:480-30-8 1,5-dimethyl-2-phenylpyrazol-3-one

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References of 1,5-dimethyl-2-phenylpyrazol-3-one
Title: Dichloralphenazone
CAS Registry Number: 480-30-8
CAS Name: 1,2-Dihydro-1,5-dimethyl-2-phenyl-3H-pyrazol-3-one compd with 2,2,2-trichloro-1,1-ethanediol(1:2)
Synonyms: dichloralantipyrine
Trademarks: Bonadorm (Smith & Nephew); Dormwell (Smith & Nephew); Welldorm (Smith & Nephew)
Molecular Formula: C15H18Cl6N2O5
Molecular Weight: 519.03
Percent Composition: C 34.71%, H 3.50%, Cl 40.98%, N 5.40%, O 15.41%
Line Formula: [CCl3CH(OH)2]2.C11H12N2O
Literature References: Prepn: Pfeiffer, Seidel, Z. Physiol. Chem. 178, 97 (1928). GLC determn in pharmaceutical formulation: F. M. Plakogiannis, A. M. Saad, J. Pharm. Sci. 66, 604 (1977). Clinical trial of combination with isometheptene and acetaminophen, q.q.v., in treatment of migraine: S. Diamond, Headache 15, 282 (1976).
Properties: Small prismatic needles from water, mp 68°.
Melting point: mp 68°
NOTE: This is a controlled substance (depressant): 21 CFR, 1308.14.
Therap-Cat: Sedative, hypnotic.
Keywords: Sedative/Hypnotic; Chloral Derivatives.