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CAS No 81-82-3 , 3-[1-(4-chlorophenyl)-3-oxobutyl]-4-hydroxychromen-2-one

  • Name: 3-[1-(4-chlorophenyl)-3-oxobutyl]-4-hydroxychromen-2-one
  • Synonyms: Ratilan; Tomorin; Cumachlor [German]; p-Chlorowarfarin;3-[1-(4-chlorophenyl)-3-oxobutyl]-4-hydroxychromen-2-one; Cumachloor [Dutch]; Geigy rodenticide exp. 332; Kumachlor [Czech];
  • CAS Registry Number:
  • Transport: UN 2811
  • Melting Point: 168-170 ºC
  • Density: 1.384 g/cm3
  • Refractive index: 1.641
  • Safety Statements: R48/22;R52/53
  • Hazard Symbols: Xn: Harmful;
  • EINECS: 201-378-1
  • Molecular Weight: 342.773
  • InchiKey: DEKWZWCFHUABHE-UHFFFAOYSA-N
  • InChI: InChI=1S/C19H15ClO4/c1-11(21)10-15(12-6-8-13(20)9-7-12)17-18(22)14-4-2-
    3-5-16(14)24-19(17)23/h2-9,15,22H,10H2,1H3
  • Risk Statements: S37;S61
  • Molecular Formula: C19H15ClO4
  • Molecular Structure:CAS No:81-82-3 3-[1-(4-chlorophenyl)-3-oxobutyl]-4-hydroxychromen-2-one
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81-82-3 FAMARIN

  • 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 ,China
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81-82-3 DL-3-(Alpha-Acetonyl-4'-chlorobenzyl)-4-hydroxycoumarin

  • China Syntechem Co.,Ltd [Manufacturer]
  • Tel: +86-519-89882658
  • Fax: +86-519-8512 5369
  • Address: Syntechem Co.,Ltd
    18 South Zhulin Rd.
    Tianning district,Changzhou
    Jiangsu China 213022 ,China
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81-82-3 Dl-3-(alpha-acetonyl-4'-chlorobenzyl)-4-hydroxycoumarin

  • Dl-3-(alpha-acetonyl-4'-chlorobenzyl)-4-hydroxycoumarin
  • China Sunkingchem Pharmaceutical Co., Ltd. [Manufacturer]
  • Tel: +86-28-88007744
  • Fax: +86-28-85193812
  • Address: A-703, Gaofa Building, Jiuxing Road 6#, Hi-Tech Zone 610041, Chengdu, Sichuan, China.610041 ChengduCHINA Chengdu,China
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81-82-3 Cumachlor

  • Cumachlor, 99%
  • China Facus Pharmaceutical Co., Ltd. [Manufacturer]
  • Tel: +86-(0)574-62378411
  • Fax: +86-(0)574-62378410
  • Address: 24Fl,Yuanjing Building,Beilun District, Zhejiang 315800 NingboCHINA Ningbo,China
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81-82-3 DL-3-(Alpha-Acetonyl-4'-chlorobenzyl)-4-hydroxycoumarin

  • China shanghai sphchem co.,ltd [Manufacturers]
  • Tel: +86-21-56491756 13512199871
  • Fax: 0
  • Address: NO.133, Wuye, Yangxin Road ,Shanghai China shanghai,shanghai ChinaChina
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81-82-3 WARFARIN

  • China CHINA CHEM SOURCE (HK) CO.,LTD. [Manufacturer]
  • Tel: +86-411-82808830
  • Fax: +86-411-82809230
  • Address: CHINA CHEM SOURCE (HK) CO.,LTD.
    RM.1628, Bank of East Asia Mansion
    7 Renmin Road, Zhongshan District,
    Dalian, China, 116001 ,China
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81-82-3 WARFARIN

  • United States SST Corporation [Manufacturer]
  • Tel: 800-222-0921/ 973-473-4300
  • Fax: 973-473-4326
  • Address: SST Corporation
    635 Brighton Road
    Clifton, NJ 07012 ,United States
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81-82-3 DL-3-(Alpha-Acetonyl-4'-chlorobenzyl)-4-hydroxycoumarin

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81-82-3 WARFARIN

  • United States AKOR Corp. [Manufacturer]
  • Tel: 609-818-9495
  • Fax: 609-818-9496
  • Address: AKOR Corp.
    284 Jacobs Creek Road
    Titusville, NJ 08560 ,United States
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81-82-3 DL-3-(alpha-Acetonyl-4'-chlorobenzyl)-4-hydroxycouma

  • DL-3-(alpha-Acetonyl-4'-chlorobenzyl)-4-hydroxycouma
  • Germany CHEMOS GmbH [Manufacturer]
  • Tel: 0049 9402/9336 0
  • Fax: 0049 9402/9336 13
  • Address: CHEMOS GmbH
    Werner-von-Siemensstr. 3
    93128 Regenstauf
    Germany ,Germany
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References of 3-[1-(4-chlorophenyl)-3-oxobutyl]-4-hydroxychromen-2-one
Title: Coumachlor
CAS Registry Number: 81-82-3
CAS Name: 3-[1-(4-Chlorophenyl)-3-oxobutyl]-4-hydroxy-2H-1-benzopyran-2-one
Synonyms: 3-(a-acetonyl-p-chlorobenzyl)-4-hydroxycoumarin; 3-(a-p-chlorophenyl-b-acetylethyl)-4-hydroxycoumarin
Manufacturers' Codes: G-21133
Molecular Formula: C19H15ClO4
Molecular Weight: 342.77
Percent Composition: C 66.58%, H 4.41%, Cl 10.34%, O 18.67%
Literature References: Structural analog of warfarin. Prepn: F. Litvan, W. Stoll, US 2648682 (1953 to J. R. Geigy). Anticoagulant activity: M. Reiff, R. Weismann, Acta Trop. 8, 97 (1951), C.A. 50, 10976d (1956). Review of comparative toxicology: H. Wanntorp, Acta Pharmacol. Toxicol. 16, Suppl. 2, 123 pp (1959).
Properties: Crystals, mp 169-171°. Sol in alc, acetone, chloroform. Slightly sol in benzene, ether. Practically insol in water. MLD in dog, swine (mg/kg): <5, <5 orally (Wanntorp).
Melting point: mp 169-171°
Toxicity data: MLD in dog, swine (mg/kg): <5, <5 orally (Wanntorp)
CAUTION: Similar to warfarin, with delayed actions on prothrombin level and blood clotting, resulting in death by hemorrhage. See Clinical Toxicology of Commercial Products, R.E. Gosselin et al., Eds. (Williams & Wilkins, Baltimore, 5th ed., 1984) Section II, pp 348.
Use: Rodenticide.