Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 2H-PYRAN-2-ONE, 3-BROMO-
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

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

19978-32-6

19978-32-6 structure

19978-32-6 structure

Name: 2H-PYRAN-2-ONE, 3-BROMO-
Chemical Name: 3-bromopyran-2-one
CAS Number: 19978-32-6
Molecular Formula: C₅H₃BrO₂
Molecular Weight: 174.98000
Create Date: 2018-08-14 11:34:13
Modify Date: 2025-08-27 14:17:32

Name	3-bromopyran-2-one
Synonyms	3-bromo-pyran-2-one 3-Brom-2-pyron 3-bromo-2H-pyran-2-one 2H-Pyran-2-one,3-bromo 3-bromo-2-pyrone

Density	1.882±0.06 g/cm3(Predicted)
Boiling Point	261.1±33.0 °C(Predicted)
Melting Point	64-66 °C
Molecular Formula	C₅H₃BrO₂
Molecular Weight	174.98000
Exact Mass	173.93200
PSA	30.21000
LogP	1.40230

HS Code	2932999099

Precursor 9
137776-72-8 3040-20-8 504-31-4 283156-19-4
3393-45-1 104184-64-7 60249-17-4 35436-57-8
283156-05-8
DownStream 3
31678-73-6 504-31-4 847822-68-8

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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