Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 3-(2-BENZOXAZOLYL)-7-HYDROXYCOUMARIN
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

64887-40-7

64887-40-7 structure

Name: 3-(2-BENZOXAZOLYL)-7-HYDROXYCOUMARIN
Chemical Name: (3E)-3-(3H-1,3-benzoxazol-2-ylidene)chromene-2,7-dione
CAS Number: 64887-40-7
Molecular Formula: C₁₆H₉NO₄
Molecular Weight: 279.24700
Create Date: 2019-01-09 22:03:53
Modify Date: 2025-08-21 14:32:12

Name	(3E)-3-(3H-1,3-benzoxazol-2-ylidene)chromene-2,7-dione
Synonyms	EINECS 265-263-8 3-benzoxazol-2-yl-7-hydroxy-1-benzopyran-2(2H)-one 3-benzooxazol-2-yl-7-hydroxy-chromen-2-one 3-(2-Benzolyl)-7-hydroxycoumarin 3-(2-benzoxazoyl)umbelliferone 3-(benzo[d]oxazol-2-yl)-7-hydroxy-2H-chromen-2-one

Density	1.487g/cm3
Boiling Point	550.558ºC at 760 mmHg
Melting Point	302ºC(lit.)
Molecular Formula	C₁₆H₉NO₄
Molecular Weight	279.24700
Flash Point	286.767ºC
Exact Mass	279.05300
PSA	76.21000
LogP	1.65860
Index of Refraction	1.722

Safety Phrases	22-24/25
WGK Germany	3
HS Code	2934999090

16105-44-5

95-01-2

~76%

64887-40-7

Literature: PTC THERAPEUTICS, INC.; F. HOFFMANN-LA ROCHE AG; WOLL, Matthew G.; CHEN, Guangming; CHOI, Soongyu; DAKKA, Amal; HUANG, Song; KARP, Gary Mitchell; LEE, Chang-Sun; LI, Chunshi; NARASIMHAN, Jana; NARYSHKIN, Nikolai; PAUSHKIN, Sergey; QI, Hongyan; TURPOFF, Anthony A.; WEETALL, Marla L.; WELCH, Ellen; YANG, Tianle; ZHANG, Nanjing; ZHANG, Xiaoyan; ZHAO, Xin; PINARD, Emmanuel; RATNI, Hasane Patent: WO2013/101974 A1, 2013 ; Location in patent: Paragraph 00989; 00990 ;

15344-56-6

95-01-2

~61%

64887-40-7

Literature: Elnagdi, M. H.; Abdallah, S. O.; Ghoneim, K. M.; Ebied, E. M.; Kassab, K. N. Journal of Chemical Research, Miniprint, 1997 , # 2 p. 375 - 384

39116-38-6

108-46-3

64887-40-7

Literature: Naik,H.A.; Seshadri,S. Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1977 , vol. 15, p. 506 - 508

Precursor 5
16105-44-5 95-01-2 15344-56-6 39116-38-6
108-46-3
DownStream 2
97004-78-9 97004-80-3

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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