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CAS No 27503-81-7 , 2-phenyl-3H-benzimidazole-5-sulfonic acid Search by region : Germany

  • Name: 2-phenyl-3H-benzimidazole-5-sulfonic acid
  • Synonyms: Phenylbenzimidazole sulfonic acid; Ensulizole; 27503-81-7;2-phenyl-3H-benzimidazole-5-sulfonic acid;2-PHENYLBENZIMIDAZOLE-5-SULFONIC ACID; 2-phenyl-1H-benzimidazole-5-sulfonic acid; NCGC00166262-01;
  • CAS Registry Number:
  • Melting Point: 300 ºC
  • Flash Point: >100
  • Density: 1.497g/cm3
  • Safety Statements: R36/37/38
  • Hazard Symbols: Xi: Irritant;
  • HS Code: 29339990
  • Flash Point: >100
  • EINECS: 248-502-0
  • Molecular Weight: 274.2951
  • InchiKey: UVCJGUGAGLDPAA-UHFFFAOYSA-N
  • InChI: InChI=1S/C13H10N2O3S/c16-19(17,
    18)10-6-7-11-12(8-10)15-13(14-11)9-4-2-1-3-5-9/h1-8H,(H,14,15)(H,16,17,
    18)
  • Risk Statements: S26;S36
  • Molecular Formula: C13H10N2O3S
  • Molecular Structure:CAS No:27503-81-7 2-phenyl-3H-benzimidazole-5-sulfonic acid

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27503-81-7 2-PHENYLBENZIMIDAZOLE-5-SULFONIC ACID

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27503-81-7 Ultraviolet absorbent UV-T

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References of 2-phenyl-3H-benzimidazole-5-sulfonic acid
Title: Ensulizole
CAS Registry Number: 27503-81-7
CAS Name: 2-Phenyl-1H-benzimidazole-5-sulfonic acid
Synonyms: phenylbenzimidazole sulfonic acid
Trademarks: Eusolex 232 (Merck KGaA); Neo Heliopan Hydro (Symrise); Parsol HS (DSM)
Molecular Formula: C13H10N2O3S
Molecular Weight: 274.30
Percent Composition: C 56.92%, H 3.67%, N 10.21%, O 17.50%, S 11.69%
Literature References: UV-B filter in sunscreens and cosmetics. Synergistic increase in SPF occurs in combination with oil-soluble UV absorbers. Prepn: V. G. Sayapin et al., Khim. Geterotsikl. Soedin. 5, 681 (1970), C.A. 73, 45409p (1970). See also: U. Heywang et al., US 5473079 (1995 to Merck Patent GmbH). DNA photosensitization study: C. Stevenson, R. J. H. Davies, Chem. Res. Toxicol. 12, 38 (1999). Photochemical studies: J. J. Inbaraj et al., Photochem. Photobiol. 75, 107 (2002). Fluorometric determn in urine: M. T. Vidal et al., Talanta 59, 591 (2003). Complexation with cyclodextrins: S. Scalia et al., Eur. J. Pharm. Sci. 22, 241 (2004).
Properties: mp 410° (dec). Absorption max (phosphate buffer, pH 7.4): 300 nm. Soly in water: ~0.03%.
Melting point: mp 410°
Absorption maximum: Absorption max (phosphate buffer, pH 7.4): 300 nm
 
Derivative Type: Sodium salt
CAS Registry Number: 5997-53-5
Molecular Formula: C13H9N2NaO3S
Molecular Weight: 296.28
Percent Composition: C 52.70%, H 3.06%, N 9.46%, Na 7.76%, O 16.20%, S 10.82%
Properties: Soly: water >30%; 1,2-propylene glycol >20%.
 
Therap-Cat: Ultraviolet screen.
Keywords: Ultraviolet Screen.