Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 5,7-dibromo-6-hydroxy-chroman-2-one
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

20978-36-3

20978-36-3 structure

20978-36-3 structure

Name: 5,7-dibromo-6-hydroxy-chroman-2-one
Chemical Name: 5,7-dibromo-6-hydroxy-3,4-dihydrochromen-2-one
CAS Number: 20978-36-3
Molecular Formula: C₉H₆Br₂O₃
Molecular Weight: 321.95000
Create Date: 2016-10-15 16:13:07
Modify Date: 2025-09-23 05:33:24

Name	5,7-dibromo-6-hydroxy-3,4-dihydrochromen-2-one
Synonyms	5,7-dibromo-6-hydroxy-3,4-dihydro-2H-chromen-2-one 3,4-Dihydrocoumarin,5,7-dibromo-6-hydroxy 5,7-Dibrom-6-hydroxy-chroman-2-on Coumarin-6-ol,5,7-dibromo-3,4-dihydro 5.7-Dibrom-6-hydroxyhydrocumarin 5,7-dibromo-6-hydroxy-chroman-2-one

Density	2.082g/cm3
Boiling Point	372.7ºC at 760 mmHg
Molecular Formula	C₉H₆Br₂O₃
Molecular Weight	321.95000
Flash Point	179.2ºC
Exact Mass	319.86800
PSA	46.53000
LogP	2.76880
Vapour Pressure	4.41E-06mmHg at 25°C
Index of Refraction	1.665

2669-94-5 structure

2669-94-5

~%

20978-36-3 structure

20978-36-3

Literature: Schmir et al. Journal of the American Chemical Society, 1959 , vol. 81, p. 2228,2232

Precursor 1
2669-94-5
DownStream 0

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