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CAS No 531-81-7 , 2-oxochromene-3-carboxylic acid

  • Name: 2-oxochromene-3-carboxylic acid
  • Synonyms: 3-Carboxycoumarin; 531-81-7; 2-Oxo-2H-chromene-3-carboxylic acid; 2-Oxochromene-3-carboxylic acid;2-oxochromene-3-carboxylic acid;
  • CAS Registry Number:
  • Transport: UN 2811
  • Melting Point: 190-193 ºC
  • Flash Point: 162.7°C
  • Boiling Point: 388.6°Cat760mmHg
  • Density: 1.493g/cm3
  • Water Solubility: 13 G/L (37 ºC)
  • Safety Statements: R25
  • Hazard Symbols: T: Toxic;
  • Flash Point: 162.7°C
  • EINECS: 208-518-0
  • Molecular Weight: 190.15224
  • InchiKey: ACMLKANOGIVEPB-UHFFFAOYSA-N
  • InChI: InChI=1S/C10H6O4/c11-9(12)7-5-6-3-1-2-4-8(6)14-10(7)13/h1-5H,(H,11,12)
  • Risk Statements: S28A;S45
  • Molecular Formula: C10H6O4
  • Molecular Structure:CAS No:531-81-7 2-oxochromene-3-carboxylic acid
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531-81-7 2-Oxo-2H-1-benzopyran-3-carboxylic acid

  • 2-Oxo-2H-1-benzopyran-3-carboxylic acid
  • Germany CHEMOS GmbH [Manufacturer]
  • Tel: 0049 9402/9336 0
  • Fax: 0049 9402/9336 13
  • Address: CHEMOS GmbH
    Werner-von-Siemensstr. 3
    93128 Regenstauf
    Germany null,nullGermany
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531-81-7 Coumarin-3-carboxylic acid

  • Coumarin-3-carboxylic acid, 98%
  • Hong kong Advanced Technology & Industrial Co., Ltd. [Manufacturer]
  • Tel: (852) 2390 2293/ (852) 2394 5546
  • Fax: (852) 2789 8314
  • Address: Unit B, 1/F., Cheong Shing Bldg.,
    17 Walnut St., Tai Kok Tsui, Kln,
    Hong Kong null,nullHong kong
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531-81-7 COUMARIN-3-CARBOXYLIC ACID

  • China Nanjing Chemlin Chemical Industry Co.,Ltd. [Manufacturer]
  • Tel: +86 25 8369-7070/ +86 138 51816776 (Mobile)
  • Fax: +86 25 8345-3275
  • Address: Rm.902 Longyin Plaza,
    No. 217 Zhongshan Rd.
    (N)Nanjing 210009,China null,nullChina
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References of 2-oxochromene-3-carboxylic acid
Title: Coumarin-3-carboxylic Acid
CAS Registry Number: 531-81-7
CAS Name: 2-Oxo-2H-1-benzopyran-3-carboxylic acid
Molecular Formula: C10H6O4
Molecular Weight: 190.15
Percent Composition: C 63.16%, H 3.18%, O 33.66%
Literature References: By heating salicylaldehyde with malonic acid in glacial acetic acid. Review: Sethna, Shah, Chem. Rev. 36, 1 (1945).
Properties: Needles from water, mp 188° (dec). Slightly sol in water; sol in alc, alkalies. Insol in ether, benzene, petr ether.
Melting point: mp 188° (dec)