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ChemicalBook >> CAS DataBase List >> 5-chloro-4-methyl-2,3-dihydropyridazin-3-one

5-chloro-4-methyl-2,3-dihydropyridazin-3-one

5-chloro-4-methyl-2,3-dihydropyridazin-3-one price.
  • $65 - $6710
  • Product name: 5-chloro-4-methyl-2,3-dihydropyridazin-3-one
  • CAS: 104566-45-2
  • MF: C5H5ClN2O
  • MW: 144.56
  • EINECS:
  • MDL Number:MFCD28501850
  • Synonyms:5-chloro-4-methyl-2,3-dihydropyridazin-3-one;5-chloro-4-methyl-3(2H)-Pyridazinone;5-chloro-4-methylpyridazin-3-ol;3(2H)-Pyridazinone, 5-chloro-4-methyl-;5-Chloro-4-methylpyridazin-3(2H)-one
Price17 Properties Safety Information Description
17 prices
Selected condition：
Brand
  • aablocks
  • AccelPharmtech
  • ACHEMBLOCK
  • Activate Scientific
  • American Custom Chemicals Corporation
  • Apolloscientific
  • TRC
Package
  • 5MG
  • 100mg
  • 250mg
  • 500mg
  • 1g
  • 5g
  • 25G
  • Manufactureraablocks
  • Product numberAA00HAAI
  • Product description5-Chloro-4-methylpyridazin-3(2H)-one 95%
  • Packaging100mg
  • Price$209
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA00HAAI
  • Product description5-Chloro-4-methylpyridazin-3(2H)-one 95%
  • Packaging250mg
  • Price$349
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA00HAAI
  • Product description5-Chloro-4-methylpyridazin-3(2H)-one 95%
  • Packaging1g
  • Price$991
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA00HAAI
  • Product description5-Chloro-4-methylpyridazin-3(2H)-one 95%
  • Packaging5g
  • Price$2848
  • Updated2026-05-28
  • Buy
  • ManufacturerAccelPharmtech
  • Product numberX0302
  • Product description5-chloro-4-methyl-3(2H)-Pyridazinone 97.00%
  • Packaging25G
  • Price$6710
  • Updated2026-05-21
  • Buy
  • ManufacturerAccelPharmtech
  • Product numberX0302
  • Product description5-chloro-4-methyl-3(2H)-Pyridazinone 97.00%
  • Packaging5G
  • Price$3590
  • Updated2026-05-21
  • Buy
  • ManufacturerAccelPharmtech
  • Product numberX0302
  • Product description5-chloro-4-methyl-3(2H)-Pyridazinone 97.00%
  • Packaging1G
  • Price$2100
  • Updated2026-05-21
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberL14892
  • Product description5-chloro-4-methyl-2,3-dihydropyridazin-3-one 97%
  • Packaging1G
  • Price$565
  • Updated2026-05-27
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberL14892
  • Product description5-chloro-4-methyl-2,3-dihydropyridazin-3-one 97%
  • Packaging250MG
  • Price$285
  • Updated2026-05-27
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberL14892
  • Product description5-chloro-4-methyl-2,3-dihydropyridazin-3-one 97%
  • Packaging100MG
  • Price$185
  • Updated2026-05-27
  • Buy
  • ManufacturerActivate Scientific
  • Product numberAS58062
  • Product description5-Chloro-4-methyl-2,3-dihydropyridazin-3-one 95%
  • Packaging1g
  • Price$757
  • Updated2026-06-04
  • Buy
  • ManufacturerActivate Scientific
  • Product numberAS58062
  • Product description5-Chloro-4-methyl-2,3-dihydropyridazin-3-one 95%
  • Packaging250mg
  • Price$371
  • Updated2026-06-04
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberHCH0420370
  • Product description5-CHLORO-4-METHYL-2,3-DIHYDROPYRIDAZIN-3-ONE 95.00%
  • Packaging5MG
  • Price$496.3
  • Updated2021-12-16
  • Buy
  • ManufacturerApolloscientific
  • Product numberOR304390
  • Product description5-Chloro-4-methyl-2,3-dihydropyridazin-3-one ≥95%
  • Packaging500mg
  • Price$1813
  • Updated2026-06-04
  • Buy
  • ManufacturerApolloscientific
  • Product numberOR304390
  • Product description5-Chloro-4-methyl-2,3-dihydropyridazin-3-one ≥95%
  • Packaging250mg
  • Price$921
  • Updated2026-06-04
  • Buy
  • ManufacturerApolloscientific
  • Product numberOR304390
  • Product description5-Chloro-4-methyl-2,3-dihydropyridazin-3-one ≥95%
  • Packaging100mg
  • Price$564
  • Updated2026-06-04
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA00HAAI 5-Chloro-4-methylpyridazin-3(2H)-one 95% 100mg $209 2026-05-28 Buy
aablocks AA00HAAI 5-Chloro-4-methylpyridazin-3(2H)-one 95% 250mg $349 2026-05-28 Buy
aablocks AA00HAAI 5-Chloro-4-methylpyridazin-3(2H)-one 95% 1g $991 2026-05-28 Buy
aablocks AA00HAAI 5-Chloro-4-methylpyridazin-3(2H)-one 95% 5g $2848 2026-05-28 Buy
AccelPharmtech X0302 5-chloro-4-methyl-3(2H)-Pyridazinone 97.00% 25G $6710 2026-05-21 Buy
AccelPharmtech X0302 5-chloro-4-methyl-3(2H)-Pyridazinone 97.00% 5G $3590 2026-05-21 Buy
AccelPharmtech X0302 5-chloro-4-methyl-3(2H)-Pyridazinone 97.00% 1G $2100 2026-05-21 Buy
ACHEMBLOCK L14892 5-chloro-4-methyl-2,3-dihydropyridazin-3-one 97% 1G $565 2026-05-27 Buy
ACHEMBLOCK L14892 5-chloro-4-methyl-2,3-dihydropyridazin-3-one 97% 250MG $285 2026-05-27 Buy
ACHEMBLOCK L14892 5-chloro-4-methyl-2,3-dihydropyridazin-3-one 97% 100MG $185 2026-05-27 Buy
Activate Scientific AS58062 5-Chloro-4-methyl-2,3-dihydropyridazin-3-one 95% 1g $757 2026-06-04 Buy
Activate Scientific AS58062 5-Chloro-4-methyl-2,3-dihydropyridazin-3-one 95% 250mg $371 2026-06-04 Buy
American Custom Chemicals Corporation HCH0420370 5-CHLORO-4-METHYL-2,3-DIHYDROPYRIDAZIN-3-ONE 95.00% 5MG $496.3 2021-12-16 Buy
Apolloscientific OR304390 5-Chloro-4-methyl-2,3-dihydropyridazin-3-one ≥95% 500mg $1813 2026-06-04 Buy
Apolloscientific OR304390 5-Chloro-4-methyl-2,3-dihydropyridazin-3-one ≥95% 250mg $921 2026-06-04 Buy
Apolloscientific OR304390 5-Chloro-4-methyl-2,3-dihydropyridazin-3-one ≥95% 100mg $564 2026-06-04 Buy
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Properties

Density :1.45±0.1 g/cm3(Predicted)
storage temp. :Storage temp. 2-8°C
pka :10.10±0.60(Predicted)
Appearance :White to off-white Solid

Safety Information

Symbol(GHS): Exclamation Mark (GHS07)
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
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
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.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352 IF ON SKIN: wash with plenty of soap and water.
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P312 Call a POISON CENTER or doctor/physician if you feel unwell.
P321 Specific treatment (see … on this label).
P332+P313 IF SKIN irritation occurs: Get medical advice/attention.
P337+P313 IF eye irritation persists: Get medical advice/attention.
P362 Take off contaminated clothing and wash before reuse.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P405 Store locked up.
P501 Dispose of contents/container to..…

Description

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Suppliers and manufacturers

Aikon International Limited Shanghai Kaiwei Chemical Technology Co., Ltd. Shanghai Sunway Pharmaceutical Technology Co.,Ltd. Shanghai Guangyang Carrie Biotechnology Co., LTD Yutong Pharmaceutical Technology (Suzhou) Co., Ltd. Shanghai Haohong Scientific Co., Ltd. Shanghai Easy CDMO Co.,Ltd Beijing Solarbio Science & Tecnology Co., Ltd. Suzhou Haiben Pharmaceutical Co., Ltd PharmaBlock Sciences (Nanjing), Inc.