Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 1H-Pyrazol-1-ol
Price: Check
Purity: 97.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: 1H-Pyrazol-1-ol
Price: ￥356.0/1g ￥1056.0/5g ￥1966.0/10g
Purity: 97.0%
Stocking Period: 1 Day
Contact: Liu jia
Email: 2130147988@qq.com

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

Chainpharm Limited
China
Product Name: 1H-Pyrazol-1-ol
Price: ￥Inquiry/1g ￥Inquiry/10g ￥Inquiry/100g ￥Inquiry/1kg
Purity: 97.0%
Stocking Period: 1 Day
Contact: Sales Department
Email: sales@chainpharm.com

81945-73-5

81945-73-5 structure

81945-73-5 structure

Name: 1H-Pyrazol-1-ol
Chemical Name: 1-hydroxypyrazole
CAS Number: 81945-73-5
Molecular Formula: C₃H₄N₂O
Molecular Weight: 84.077
Create Date: 2018-05-11 08:00:00
Modify Date: 2025-08-26 12:54:30

Name	1-hydroxypyrazole
Synonyms	1-hydroxy-1,2-diazole EINECS 257-808-3 hydroxypyrazole 1H-Pyrazole,1-hydroxy 1H-Pyrazol-1-ol N-hydroxypyrazole 1H-Pyrazole, 1-hydroxy- 1-hydroxy-1H-pyrazole

Density	1.3±0.1 g/cm3
Boiling Point	242.3±23.0 °C at 760 mmHg
Molecular Formula	C₃H₄N₂O
Molecular Weight	84.077
Flash Point	100.3±22.6 °C
Exact Mass	84.032364
PSA	38.05000
LogP	0.24
Vapour Pressure	0.0±0.5 mmHg at 25°C
Index of Refraction	1.588

HS Code	2933199090

288-13-1 structure

288-13-1

~49%

81945-73-5 structure

81945-73-5

Literature: Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), , # 3 p. 243 - 248

100159-47-5 structure

100159-47-5

~95%

81945-73-5 structure

81945-73-5

Literature: Journal of Organic Chemistry, , vol. 60, # 16 p. 4995 - 4998

145162-47-6 structure

145162-47-6

~75%

81945-73-5 structure

81945-73-5

Literature: Acta Chemica Scandinavica, , vol. 50, # 6 p. 549 - 555

71989-66-7 structure

71989-66-7

~0%

300-87-8 structure

300-87-8

81945-73-5 structure

81945-73-5

71989-59-8 structure

71989-59-8

Literature: Journal of Organic Chemistry, , vol. 45, # 1 p. 76 - 80

1383843-59-1 structure

1383843-59-1

~%

81945-73-5 structure

81945-73-5

Literature: Journal of Materials Chemistry, , vol. 22, # 25 p. 12659 - 12665

Precursor 4
288-13-1 100159-47-5 71989-66-7 1383843-59-1
DownStream 4
145162-48-7 29184-68-7 100159-47-5 87844-44-8

HS Code	2933199090
Summary	2933199090. other compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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