Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 2H-PYRAN-2-ONE, 5-BROMO-
Price: Check
Purity: 95.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2H-PYRAN-2-ONE, 5-BROMO-
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

19978-33-7

19978-33-7 structure

19978-33-7 structure

Name: 2H-PYRAN-2-ONE, 5-BROMO-
Chemical Name: 5-bromopyran-2-one
CAS Number: 19978-33-7
Molecular Formula: C₅H₃BrO₂
Molecular Weight: 174.98000
Create Date: 2018-08-28 03:54:07
Modify Date: 2025-09-19 23:09:49

Name	5-bromopyran-2-one
Synonyms	5-bromo-2-pyrone 2H-Pyran-2-one,5-bromo 5-bromo-pyran-2-one 5-bromo-2(H)-pyran-2-one

Density	1.882±0.06 g/cm3(Predicted)
Boiling Point	233.7±33.0 °C(Predicted)
Melting Point	61-63 °C
Molecular Formula	C₅H₃BrO₂
Molecular Weight	174.98000
Exact Mass	173.93200
PSA	30.21000
LogP	1.40230
Storage condition	-20°C

HS Code	2932999099

Precursor 8
137776-72-8 500-05-0 3393-45-1 104184-64-7
60249-17-4 35436-57-8 283156-05-8 283156-10-5
DownStream 1
847822-69-9

HS Code	2932999099
Summary	2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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