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Detail of "91-64-5"

  • CAS Number:
  • 91-64-5
  • Name:

  • 2H-1-Benzopyran, 2-oxo-

  • Superlist Name:
  • Coumarin
  • Molecular Structure:
  • Formula:
  • C9H6O2
  • Molecular Weight:
  • 146.15
  • Synonyms:
  • cis-o-Coumarinic acid lactone;2H-1-Benzopyran-2-one;Benzo-alpha-pyrone;Rattex;Coumarinic anhydride;5,6-Benzo-alpha-pyrone;2-Oxo-1,2-benzopyran;o-Hydroxycinnamic acid lactone;Benzo-a-pyrone;2-Propenoic acid, 3-(2-hydroxyphenyl)-, d-lactone;o-Coumaric acid lactone;2-Propenoic acid, 3-(2-hydroxyphenyl)-, delta-lactone;5,6-Benzo-2-pyrone;1, 2-Benzopyrone;Cinnamic acid, o-hydroxy-, delta-lactone;Coumarine;2H-chromen-2-one;3-(2-Hydroxyphenyl)-2-propenoic delta-lactone;o-Hydroxycinnamic lactone;
  • EINECS:
  • 202-086-7
  • Density:
  • 1.248 g/cm3
  • Melting Point:
  • 68-73 °C(lit.)
  • Boiling Point:
  • 297.999 °C at 760 mmHg
  • Flash Point:
  • 118.268 °C
  • Appearance:
  • white crystals or crystalline powder
  • Hazard Symbols:
  • IrritantXi
  • Risk Codes:
  • 20/21/22-36/37/38-40-43
  • Safety:
  • 36/37-26 Details
  • Transport Information:
  • UN 2811 6.1/PG 3
  • particular:
  • particular
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CAS No.91-64-5 Coumarin

Supplier:jinan tianqiu Import and Export Co.,Ltd [ China (Mainland)]

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CAS No.91-64-5 Coumarin

  Appearance:Powder  Package:25kg/drum

The leading manufacturer in China allow you can get Coumarin from us at the lowest price we are the one make you life gorgeous! Coumarin is an impotant additive in perfume and fragrance. As deodorizer and aroma fixative. Flash Piont:beyond 100 °C Usage: Good fi

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CAS No.91-64-5 Coumarin

  Appearance:White powder  Package:25kg/drumStorage:store in a c...  Transportation:Air courier ...  Application:medicine add...

coumarin98% HPLC

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CAS No.91-64-5 Coumarin

Assay:≥98%HPLC  Package:20mg;50mg;10...Storage:Store in dry...  Application:Analytical S...

Coumarin

Supplier:STANFORD CHEMICALS [ United States]

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CAS No.91-64-5 Coumarin

Assay:≥98%  Appearance:powder or cr...  Package:10mg,20mg,1g...Storage:-20degree

Supplier:shanghai Tauto Biotech Co., Ltd [ China (Mainland)]

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CAS No.91-64-5 Coumarin

Assay:99%  Appearance:powder  Package:25kg/drum

Supplier:HANGZHOU TOYOND BIOTECH CO., LTD [ China (Mainland)]

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SupplierHALALISOKOSHER 1590Integral
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CAS No.91-64-5 Coumarin

Product: Coumarin 2H-1-Benzopyran-2-one CAS NO.: 91-64-5 EINECS NO: 202-086-7 M.F.: C9H6O2 M.W.: 146.14 Density: 0.935 Metaling point : 68-71 oC Boring point : 298 oC Flash point : 162 oC Water solubility : 1.7 G/L (20 oC)

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CAS No.91-64-5 Coumarin

Product Name: Coumarin Synonyms: 2H-1-Benzopyran-2-one; COUMARINE; 1-Benzopyran-2-one; 1,2-Benzopyrone; Chromen-2-one; O-Oxy-Cinnamic Lactone ; 2H-chromen-2-one CAS RN.: 91-64-5 EINECS: 202-086-7 Molecular Weight: 146.1427 Molecular Formula: C9H6O2 Density: 1.248g/cm3

Supplier:Tianjin Chicheng Chemicals Co.,ltd. [ China (Mainland)]

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CAS No.91-64-5 Coumarin

Product Name: Coumarin Synonyms: 2H-1-Benzopyran-2-one; COUMARINE; 1-Benzopyran-2-one; 1,2-Benzopyrone; Chromen-2-one; O-Oxy-Cinnamic Lactone ; 2H-chromen-2-one CAS RN.: 91-64-5 EINECS: 202-086-7 Molecular Weight: 146.1427 Molecular Formula: C9H6O2 Density: 1.248g/cm3

Supplier:Tianjin Yaoyu Chemicals co.,ltd [ China (Mainland)]

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CAS No.91-64-5 Coumarin

Coumarin Production Processing: Currently coumarin is produced commercially using the Perkin reaction, which involves the heating of salicylaldehyde in the presence of acetic acid and sodium acetate. After crude courmarin mixture is removed from the reaction vessel, several p

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CAS No.91-64-5 Coumarin

  Package:50kgs drum p...

Coumarin crystals

Supplier:Jiaxing Barton Chemicals [ China (Mainland)]

Platinum
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CAS No.91-64-5 Coumarin

Assay:98%

Supplier:Hangzhou Dayangchem Co., Ltd. [ China (Mainland)]

Platinum
SupplierISO 3875Integral
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CAS No.91-64-5 Coumarin

  Appearance:white crysta...  Application:The product ...

Supplier:Shenyang Meiyao Chemical Co., Ltd., [ China (Mainland)]

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CAS No.91-64-5 Coumarin

FEMA 3791

Supplier:ORCHID CHEMICAL SUPPLIES LTD (OCS) [ China (Mainland)]

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CAS No.91-64-5 Coumarin

Supplier:WBV International Limited. [ China (Mainland)]

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CAS No.91-64-5 Coumarin

Supplier:Jinan Haohua Industry CO., LTD [ China (Mainland)]

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CAS No.91-64-5 Coumarin

Supplier:Hangzhou yunuo import and export company LTD. [ China (Mainland)]

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CAS No.91-64-5 Coumarin

Supplier:Shijiazhuang SuTe trade Co.,LTD [ China (Mainland)]

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CAS No.91-64-5 Coumarin

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CAS No.91-64-5 Coumarin

Supplier:Shijiazhuang Xudao Chemical Co.,Ltd [ China (Mainland)]

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CAS No.91-64-5 Coumarin

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CAS No.91-64-5 Coumarin

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CAS No.91-64-5 Coumarin

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CAS No.91-64-5 Coumarin

Supplier:Shanghai Rich Chemicals Co., Ltd [ China (Mainland)]

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Supplier 965Integral
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CAS No.91-64-5 Coumarin

Assay:by HPLC: >98...  Package:10mg; 20mg; ...

Supplier:Shanghai Forever Biotech Co., Ltd. [ China (Mainland)]

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CAS No.91-64-5 Coumarin

Supplier:hangzhou hongfashun Import and Export Co., Ltd. [ China (Mainland)]

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Supplier 950Integral
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CAS No.91-64-5 Coumarin

Supplier:Sarchem Laboratories, Inc. [ United States]

Gold
Supplier 950Integral
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CAS No.91-64-5 Coumarin

Assay:70%min  Appearance:powder  Package:25kg/bag

Coumarin M.P. 69dc min

Supplier:Nantong Kaixin Pharma Chemical Co.,Ltd. [ China (Mainland)]

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1945

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CAS No.91-64-5 Coumarin

Used as Fragrance

Supplier:SHANDONG HONGKUN IMP.&EXP. CO.,LTD
DEZHOU HONGKUN PHARM INTERMEDIATE CO.,LTD [ China (Mainland)]

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CAS No.91-64-5 Coumarin

coumarin

Supplier:Suzhou Credit International Trading Co., Ltd [ China (Mainland)]

Silver
Supplier 1996Integral
1996

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Address:Qingdeng, Hightech. District, Suzhou

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CAS No.91-64-5 Coumarin

Assay:99.68%  Appearance:white crysta...  Package:25kg, 50kg/d...Storage:storage cont...  Transportation:sea shipment

Formula: C9H6O2. Weight: 146.15. Melting 69 degrees Celsius. Boiling: 297-37 degrees Celsius. Solubility: soluble in ethanol, ethyl ether, chloroform, insoluble in water, soluble in water. Chromogenic reaction: 1. Daughter latter acid reaction alkaline conditions, coumarin

Min. Order:1Metric Ton USD:8.6-9.0 /Kilogram

Supplier:Changzhou Xintongli Chemical Co,. Ltd [ China (Mainland)]

20Integral
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CAS No.91-64-5 Coumarin

Synonyms 1,2 Benzopyrone Odor Description Hay Sweet Tonka New Mown Hay Appearance White Crystals Mol./Wt. 146.1452 Formula C9H6O2 Cas No. 91-64-5 Melting Point 69°CMIN Content 99% Min Light Transmittance 2 Max

Supplier:Jiangyin Baihui Fragrance CO.,LTD [ China (Mainland)]

60Integral
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CAS No.91-64-5 Coumarin

ODOUR Pleasant fragrant odour, similar to vanilla beans. COLOR & APPEARANCE White crystalline powder. STABILITY & DISCOLORATION Stable, not known to cause discoloration. REFRACTIVE INDEX AT 20?/sup>C -- SPECIFIC GRAVITY AT 25?/sup>C -- SOLUBILITY Freely soluble

Supplier:Nagpur Chemicals [ India]

167Integral
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Tel:+ 91 - 7104 - 237627

Address:W-36, MICD, HINGNA ROAD, NAGPUR - 440 016, (M.S.) , INDIA

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CAS No.91-64-5 Coumarin

mp : 68-73 °C(lit.) bp : 298 °C(lit.) density : 0.935 vapor pressure : 0.01 mm Hg ( 47 °C) Fp : 162 °C Hazard Codes : Xn Risk Statements : 22 Safety Statements : 36 RIDADR : UN 2811 6.1/PG 3 WGK Germany : 1 RTECS : GN42

Supplier:NANJING CHINAFIRST CHEMICAL INDUSTRY CO.,LTD. [ China (Mainland)]

91Integral
91

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CAS No.91-64-5 Coumarin

CAS 91-64-5 Empirical formula C9H6O2 Molar mass 146.15 g/mol

Supplier:Karl H. Boddin Chemiehandel GmbH [ Germany]

610Integral
610

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Address:Hans-Henny-Jahnn-Weg 35 22085 Hamburg

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CAS No.91-64-5 Coumarin

Coumairn(None organochlorine)

Supplier:Zhangjiagang Feihang Industry Co., Ltd. [ China (Mainland)]

82Integral
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Address:LANGAN BRIDGE, XIZHANG TOWN, ZHANGJIAGANG CITY

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CAS No.91-64-5 Coumarin

COUMARIN FOR SYNTHESIS

Supplier:NILE CHEMICALS [ India]

620Integral
620

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Address:28, Vithaldas Road, 8 Devkaran Mansion, Mumbai-400 002 INDIA

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CAS No.91-64-5 Coumarin

more information,please contact us

Supplier:CHEMOPHARMA, a. s. [ Czech Republic]

152Integral
152

Tel:+420 224 032 125

Address:Václavské náměstí 56, 111 21 Praha 1

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Reference

Metabolites of wild growing plant species in Moldavia
Metabolites of wild growing plant species in Moldavia. Florya, V. N.; Kretsu, L. G.; Malina, N. G. 91-64-5 is the cas registry number. This chemical is also mentioned in this article. (USSR). Izv. Akad. Nauk Mold. SSR, Ser. Biol. Khim. Nauk, (5), 40-4 (Russian) 1983. CODEN: IMBKB6. ISSN: 0568-5192. DOCUMENT TYPE: Journal CA Section: 11 (Plant Biochemistry) Of 136 Moldavian plant species, 91 genera and 22 families, in 103 species steroid glycosides were found by TLC and paper chromatog. of aerial parts collected during flowering. Triterpene saponins occurred in 57 species. Saponins (3-4/species) were for the 1st time found in Ferulago sulvatica, Leucanthemum vulgare, Borago officinalis, Plantago scabra, Gypsophila altissima, Silene densiflora, Dorycnium herbaceum, Ononis spinescens, and Lathyrus vernus, occurring in com. interesting concns. Tannins and coumarins were found in 63 and 62 species, resp. Triterpene and steroid aglycons mainly occurred in those plants that contained saponins and steroid glycosides. .
Modification of glass transition and liquid-liquid transition in PMMA doped with fluorescent dyes
Modification of glass transition and liquid-liquid transition in PMMA doped with fluorescent dyes. Chafai, A.; Chatain, D.; Dugas, J.; Lacabanne, C.; Vassie, E. (Lab. Phys. Solides, Univ. Paul Sabatier, Toulouse 31062, Fr.). J. Macromol. Sci., Phys., B22(5-6), 633-43 (English) 1983. CODEN: JMAPBR. ISSN: 0022-2348. DOCUMENT TYPE: Journal CA Section: 36 (Physical Properties of Synthetic High Polymers) The glass and liq.There are some commonly used reagents with their cas registry numbers 91-64-5 and 9011-14-7 in this article.-liq. transitions of PMMA [9011-14-7] doped with fluorescent dyes such as Rhodamine 6G [989-38-8], coumarin [91-64-5], and BBOT [7128-64-5] were no longer resolved and only an intense peak appeared at 127°. The relaxation processes of PMMA obeyed the Arrhenius law and showed the existence of a compensation phenomenon with a characteristic temp. which was not dependent on dye concns. .
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