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ChemicalBook >> CAS DataBase List >> 3H-Pyrazol-3-one, 1,2-dihydro-

3H-Pyrazol-3-one, 1,2-dihydro-

3H-Pyrazol-3-one, 1,2-dihydro- price.
  • $5 - $3410
  • Product name: 3H-Pyrazol-3-one, 1,2-dihydro-
  • CAS: 137-45-1
  • MF: C3H4N2O
  • MW: 84.08
  • EINECS:
  • MDL Number:MFCD00629300
  • Synonyms:1,2-dihydropyrazol-3-on;Pyrazol-5-ol;Pyrazol-3-ol;NSC 520837;4-Pyrazolin-3-one;3-Pyrazolone;3H-pyrazol-3-one;1H-Pyrazol-3-one
Price60 Properties Safety Information Description
60 prices
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Brand
  • aablocks
  • Abosyn
  • AccelPharmtech
  • ACHEMBLOCK
  • Acints
  • Activate Scientific
  • Advanced Chemicals Intermediat
  • AK Scientific
  • Alichem
  • Ambeed
  • American Custom Chemicals Corporation
  • Apolloscientific
  • Atlantic Research Chemicals
  • Chemenu
  • Crysdot
  • J&W Pharmlab
  • Matrix Scientific
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  • Synthonix
  • TCI Chemical
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Package
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  • 10mg
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  • 250mg
  • 1g
  • 5.00g
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  • 10g
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  • 25G
  • 100G
  • 1gm:
  • Manufactureraablocks
  • Product numberAA0012LG
  • Product description1H-Pyrazol-3(2H)-one 95%
  • Packaging1g
  • Price$5
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA0012LG
  • Product description1H-Pyrazol-3(2H)-one 95%
  • Packaging5g
  • Price$13
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA0012LG
  • Product description1H-Pyrazol-3(2H)-one 95%
  • Packaging10g
  • Price$16
  • Updated2026-05-28
  • Buy
  • ManufacturerAbosyn
  • Product number61-5810
  • Product description1H-pyrazol-3(2H)-one 98%
  • Packaging0.25g
  • Price$1180
  • Updated2021-12-16
  • Buy
  • ManufacturerAccelPharmtech
  • Product numberP7900
  • Product description1H-Pyrazol-3-ol 97.00%
  • Packaging1G
  • Price$1580
  • Updated2026-05-21
  • Buy
  • ManufacturerAccelPharmtech
  • Product numberP7900
  • Product description1H-Pyrazol-3-ol 97.00%
  • Packaging5G
  • Price$1830
  • Updated2026-05-21
  • Buy
  • ManufacturerAccelPharmtech
  • Product numberP7900
  • Product description1H-Pyrazol-3-ol 97.00%
  • Packaging25G
  • Price$3410
  • Updated2026-05-21
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberK16200
  • Product description1H-Pyrazol-3(2H)-one 95%
  • Packaging100G
  • Price$190
  • Updated2026-05-27
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberK16200
  • Product description1H-Pyrazol-3(2H)-one 95%
  • Packaging5G
  • Price$12
  • Updated2026-05-27
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberK16200
  • Product description1H-Pyrazol-3(2H)-one 95%
  • Packaging25G
  • Price$50
  • Updated2026-05-27
  • Buy
  • ManufacturerAcints
  • Product numberACI-00667
  • Product description2H-Pyrazol-3-ol 95%+
  • Packaging1g
  • Price$37.8
  • Updated2026-05-20
  • Buy
  • ManufacturerAcints
  • Product numberACI-00667
  • Product description2H-Pyrazol-3-ol 95%+
  • Packaging5g
  • Price$109.35
  • Updated2026-05-20
  • Buy
  • ManufacturerAcints
  • Product numberACI-00667
  • Product description2H-Pyrazol-3-ol 95%+
  • Packaging10g
  • Price$201.15
  • Updated2026-05-20
  • Buy
  • ManufacturerActivate Scientific
  • Product numberAS26562
  • Product description1,2-Dihydro-3H-pyrazol-3-one 97%
  • Packaging100g
  • Price$392
  • Updated2026-06-04
  • Buy
  • ManufacturerActivate Scientific
  • Product numberAS26562
  • Product description1,2-Dihydro-3H-pyrazol-3-one 97%
  • Packaging25g
  • Price$131
  • Updated2026-06-04
  • Buy
  • ManufacturerActivate Scientific
  • Product numberAS26562
  • Product description1,2-Dihydro-3H-pyrazol-3-one 97%
  • Packaging5g
  • Price$39
  • Updated2026-06-04
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA0012LG 1H-Pyrazol-3(2H)-one 95% 1g $5 2026-05-28 Buy
aablocks AA0012LG 1H-Pyrazol-3(2H)-one 95% 5g $13 2026-05-28 Buy
aablocks AA0012LG 1H-Pyrazol-3(2H)-one 95% 10g $16 2026-05-28 Buy
Abosyn 61-5810 1H-pyrazol-3(2H)-one 98% 0.25g $1180 2021-12-16 Buy
AccelPharmtech P7900 1H-Pyrazol-3-ol 97.00% 1G $1580 2026-05-21 Buy
AccelPharmtech P7900 1H-Pyrazol-3-ol 97.00% 5G $1830 2026-05-21 Buy
AccelPharmtech P7900 1H-Pyrazol-3-ol 97.00% 25G $3410 2026-05-21 Buy
ACHEMBLOCK K16200 1H-Pyrazol-3(2H)-one 95% 100G $190 2026-05-27 Buy
ACHEMBLOCK K16200 1H-Pyrazol-3(2H)-one 95% 5G $12 2026-05-27 Buy
ACHEMBLOCK K16200 1H-Pyrazol-3(2H)-one 95% 25G $50 2026-05-27 Buy
Acints ACI-00667 2H-Pyrazol-3-ol 95%+ 1g $37.8 2026-05-20 Buy
Acints ACI-00667 2H-Pyrazol-3-ol 95%+ 5g $109.35 2026-05-20 Buy
Acints ACI-00667 2H-Pyrazol-3-ol 95%+ 10g $201.15 2026-05-20 Buy
Activate Scientific AS26562 1,2-Dihydro-3H-pyrazol-3-one 97% 100g $392 2026-06-04 Buy
Activate Scientific AS26562 1,2-Dihydro-3H-pyrazol-3-one 97% 25g $131 2026-06-04 Buy
Activate Scientific AS26562 1,2-Dihydro-3H-pyrazol-3-one 97% 5g $39 2026-06-04 Buy
Next Last

Properties

Melting point :160-162 °C
Density :1.191±0.06 g/cm3(Predicted)
storage temp. :2-8°C
pka :9.00±0.70(Predicted)
form :solid
color :Pale yellow
InChI :InChI=1S/C3H4N2O/c6-3-1-2-4-5-3/h1-2H,(H2,4,5,6)
InChIKey :XBYRMPXUBGMOJC-UHFFFAOYSA-N
SMILES :N1C=CC(=O)N1

Safety Information

Symbol(GHS): Exclamation Mark (GHS07)
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H332 Harmful if inhaled Acute toxicity,inhalation Category 4 Warning P261, P271, P304+P340, P312
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Description

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