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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 Tonka Bean Camphor

  • China Xiamen Bestally Biotechnology Co., Ltd. [Manufacturers]
  • Tel: +86-(592)-516-3188, 516-3288
  • Fax: +86-(592)-516-5577
  • Address: 18/F Paragon Centre, No.1 Lianyue Road, Xiamen, Fujian 361004, Xiamen,FujianChina
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91-64-5 COUMARIN

  • United States Graham Chemical Corporation [Manufacturer]
  • Tel: 847-304-4400
  • Fax: 847-304-8752
  • Address: 1250 South Grove Avenue
    Suite 206
    Barrington, Illinois 60010 null,nullUnited States
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91-64-5 Coumarin

  • China WiseChem International Co.,Ltd. [Manufacturers]
  • Tel: 0086-411-82594468
  • Fax: 0086-411-82594368
  • Address: Room 1005,Rainbow Building No.23,Renmin Road,Zhongshan District Dalian,China Dalian,LiaoningChina
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91-64-5 Coumarin

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91-64-5 COUMARIN

  • United States Vigon International, Inc. [Manufacturer]
  • Tel: 877-VIGON-39/ 570-476-6300
  • Fax: 570-476-1110
  • Address: Vigon International, Inc.
    RR2 Box 2093
    Airport Road
    East Stroudsburg, PA 18301-9629 null,nullUnited States
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91-64-5 COUMARIN

  • United States Total Specialty Chemicals [Manufacturer]
  • Tel: 203-966-1525
  • Fax: 203-966-1505
  • Address: 47 Elm Street
    New Canaan, CT 06840 null,nullUnited States
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91-64-5 Tonka Bean Camphor

  • China Anhui Haibei Import & Export Co., Ltd. [Importer/Exporter]
  • Tel: +86-(551)-3653857
  • Fax: +86-(551)-3632153
  • Address: Room 711 HuiKang Building , No.361 Jixi Road, Hefei City, Anhui Province 230022, Hefei,AnhuiChina
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91-64-5 COUMARIN

  • China SINO GREAT ENTERPRISE LTD. [Manufacturer]
  • Tel: +86-731-4427351
  • Fax: +86-731-4429615
  • Address: 154 Jianxiang South Road,
    Changsha, Hunan, China. null,nullChina
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91-64-5 Coumarin

  • Japan TAKASAGO INTERNATIONAL CORPORATION [Manufacturer]
  • Tel: 201-784-7299/ +81-3-5744-0531
  • Fax: 201-784-7277
  • Address: TAKASAGO INTERNATIONAL CORPORATION
    4 VOLVO DRIVE,
    ROCKLEIGH, NEW JERSEY 07647 USA
    Tel: 201-784-7299
    Fax: 201-784-7277 null,nullJapan
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91-64-5 Coumarin

  • China NanJing Yolanda chem co.,Ltd [Distributor/Wholesaler]
  • Tel: +86-25-66660023
  • Fax: +86-25-66660038
  • Address: Qinghuai Rood 100,NanJing null,JiangsuChina
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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).