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CAS No 91-64-5 , chromen-2-one

  • Name: chromen-2-one
  • Synonyms: 2H-Chromen-2-one;chromen-2-one; 2H-1-Benzopyran-2-one; 91-64-5; Tonka bean camphor; Coumarine; Rattex; 1,2-Benzopyrone;cumarin;
  • CAS Registry Number:
  • Transport: 50kg
  • Melting Point: 68-71 ºC
  • Flash Point: 162 ºC
  • Boiling Point: 298 ºC
  • Density: 0.935
  • Refractive index: 1.594
  • Water Solubility: 1.7 G/L (20 ºC)
  • Safety Statements: R20/21/22;R36/37/38;R40
  • Hazard Symbols: Xn: Harmful;
  • Flash Point: 162 ºC
  • EINECS: 202-086-7
  • Molecular Weight: 146.14274
  • InchiKey: ZYGHJZDHTFUPRJ-UHFFFAOYSA-N
  • InChI: InChI=1S/C9H6O2/c10-9-6-5-7-3-1-2-4-8(7)11-9/h1-6H
  • Risk Statements: S26;S36/37
  • Molecular Formula: C9H6O2
  • Molecular Structure:CAS No:91-64-5 chromen-2-one

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91-64-5 Coumarin Skype bran at ycphar dot com

  • Basic Info Name:Coumarin Apearance:White Powder CAS:91-64-5 MF:C9H6O2 MW:146.14 Shipment:Air/Sea/EMS,DHL,TNT,UPS,Fedx Package:25kg/Cardboard Barrel Payment: Bank Transfer,Bitcoin,WU,MoneyGram Trademark:YuanChen Origin:China Price:fluctuated Email:Bra...
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91-64-5 Coumarin Skype bran at ycphar dot com

  • Basic Info Name:Coumarin Apearance:White Powder CAS:91-64-5 MF:C9H6O2 MW:146.14 Shipment:Air/Sea/EMS,DHL,TNT,UPS,Fedx Package:25kg/Cardboard Barrel Payment: Bank Transfer,Bitcoin,WU,MoneyGram Trademark:YuanChen Origin:China Price:fluctuated Email:Bra...
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91-64-5 CAS:91-64-5 Coumarin

  • Basic Info Name:Coumarin Apearance:White Powder CAS:91-64-5 MF:C9H6O2 MW:146.14 Shipment:Air/Sea/EMS,DHL,TNT,UPS,Fedx Package:25kg/Cardboard Barrel Payment: Bank Transfer,Bitcoin,WU,MoneyGram Trademark:YuanChen Origin:China Price:fluctuated Email:Bra...
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91-64-5 CAS:91-64-5 Coumarin

  • Basic Info Name:Coumarin Apearance:White Powder CAS:91-64-5 MF:C9H6O2 MW:146.14 Shipment:Air/Sea/EMS,DHL,TNT,UPS,Fedx Package:25kg/Cardboard Barrel Payment: Bank Transfer,Bitcoin,WU,MoneyGram Trademark:YuanChen Origin:China Price:fluctuated Email:Bra...
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  • China YuanChen Co. Ltd [Manufacturer]
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91-64-5 coumarin

  • Chemical name: Coumarin Other name: 1, 2 Benzopyrone CAS No.: 91-64-5 Molecular formula: C9H6O2 Molecular weight: 146.15 Melting point: 69-71° C Boling point: 297-301° C Uses: Coumarin is an import material of perfumery and fragrances. Item R...
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91-64-5 Coumarin(CAS: 91-64-5) Benzo-alpha-pyrone Coumarin

  • Coumarin(CAS: 91-64-5) Synonyms: Benzo-alpha-pyrone; Rattex; Coumarinic anhydride; Coumarin powder; 2-Oxo-1, 2-benzopyran; O-Hydroxycinnamic acid lactone; Benzo-a-pyrone CAS: 91-64-5 Formula: C9H6O2 Molecular Weight: 146.15 EINECS: 202-086-7 Density:...
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    • 91-64-5 Coumarin with gc

    • Coumarin with gc1-Benzopyran-2-one
    • United States INDOFINE Chemical Co., Inc. [Manufacturer]
    • Tel: (908) 359-6778
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    • Address: 121 Stryker Lane
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    91-64-5 Coumarin

    • United States HBCChem, Inc. [Manufacturers]
    • Tel: +1-510-219-6317
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    • Address: null Union City,CaliforniaUnited States
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    91-64-5 Coumarin

    • Coumarin
    • Switzerland CONNECT MARKETING GMBH [Manufacturer]
    • Tel: +41 81 740 58 50
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    • Address: CONNECT MARKETING GMBH
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    91-64-5 Coumarin

    • Coumarin
    • Hong kong Frapp's Pharma (Hongkong) Co.,Ltd [Manufacturer]
    • Tel: +852 8130 0917
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    • Address: Room 801,Mongkok Harbour Centre,638 Shanghai Street,Mongkok,Kowloon,Hongkang518001 MongkokHONG KONG Mongkok,nullHong kong
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    References of chromen-2-one
    Title: Coumarin
    CAS Registry Number: 91-64-5
    CAS Name: 2H-1-Benzopyran-2-one
    Synonyms: 1,2-benzopyrone; cis-o-coumarinic acid lactone; cumarin; coumarinic anhydride; tonka bean camphor
    Molecular Formula: C9H6O2
    Molecular Weight: 146.14
    Percent Composition: C 73.97%, H 4.14%, O 21.90%
    Literature References: In tonka beans, lavender oil, woodruff (Asperula species), in sweet clover (Melilotus). Crystal and molecular structure: Chem. Commun. (Univ. Stockholm) 1976, 21. Toxicity: Jenner et al., Food Cosmet. Toxicol. 2, 327 (1964). Review: Sethna, Shah, Chem. Rev. 36, 1 (1945); W. C. Meuly in Kirk-Othmer Encyclopedia of Chemical Technology vol. 7 (Wiley-Interscience, New York, 3rd ed., 1979) pp 196-206.
    Properties: Orthorhombic, rectangular plates. Pleasant, fragrant odor resembling that of vanilla beans, burning taste. mp 68-70°. bp 297-299°. bp5 139°. One gram dissolves in 400 ml cold, 50 ml boiling water. Freely sol in alc, chloroform, ether, oils; also sol in alkali hydroxide solns. LD50 orally in rats, guinea pigs: 680, 202 mg/kg (Jenner).
    Melting point: mp 68-70°
    Boiling point: bp 297-299°; bp5 139°
    Toxicity data: LD50 orally in rats, guinea pigs: 680, 202 mg/kg (Jenner)
    Use: Pharmaceutic aid (flavor).