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ChemicalBook >> CAS DataBase List >> 3-(2-Hydroxyethyl)-9-hydroxy-2-Methyl-4H-pyrido[1,2-a]pyriMidin-4-one

3-(2-Hydroxyethyl)-9-hydroxy-2-Methyl-4H-pyrido[1,2-a]pyriMidin-4-one

3-(2-Hydroxyethyl)-9-hydroxy-2-Methyl-4H-pyrido[1,2-a]pyriMidin-4-one price.
  • $89 - $2200
  • Product name: 3-(2-Hydroxyethyl)-9-hydroxy-2-Methyl-4H-pyrido[1,2-a]pyriMidin-4-one
  • CAS: 181525-38-2
  • MF: C11H12N2O3
  • MW: 220.22
  • EINECS:605-935-3
  • MDL Number:MFCD28130087
  • Synonyms:3-(2-Hydroxyethyl)-9-hydroxy-2-Methyl-4H-pyrido[1,2-a]pyriMidin-4-one;9-Hydroxy-3-(2-hydroxyethyl)-2-Methyl-4H-pyrido[1,2-a]pyriMidin-4-one;Paliperidone-4;Paliperidone impurity 20/9-hydroxy-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one;9-hydroxy-3-(2-hydroxyethyl);4H-Pyrido[1,2-a]pyrimidin-4-one, 9-hydroxy-3-(2-hydroxyethyl)-2-methyl-;Paliperidone Tetradehydro Hydroxyethyl Impurity;9-hydroxy-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimi...
Price12 Properties Safety Information Description
12 prices
Selected condition：
Brand
  • aablocks
  • ACHEMBLOCK
  • Chemenu
  • Medical Isotopes, Inc.
  • TRC
  • Usbiological
Package
  • 25mg
  • 100mg
  • 250mg
  • 1g
  • 5G
  • Manufactureraablocks
  • Product numberAA00ABX6
  • Product description9-Hydroxy-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one 95%
  • Packaging1g
  • Price$226
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA00ABX6
  • Product description9-Hydroxy-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one 95%
  • Packaging250mg
  • Price$128
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA00ABX6
  • Product description9-Hydroxy-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one 95%
  • Packaging100mg
  • Price$89
  • Updated2026-05-28
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberY231383
  • Product description9-Hydroxy-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one 95%
  • Packaging1G
  • Price$215
  • Updated2026-05-27
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberY231383
  • Product description9-Hydroxy-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one 95%
  • Packaging5G
  • Price$860
  • Updated2026-05-27
  • Buy
  • ManufacturerChemenu
  • Product numberCM167905
  • Product description9-hydroxy-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one 97%
  • Packaging5g
  • Price$152
  • Updated2026-05-26
  • Buy
  • ManufacturerChemenu
  • Product numberCM167905
  • Product description9-hydroxy-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one 97%
  • Packaging5g
  • Price$152
  • Updated2026-05-20
  • Buy
  • ManufacturerMedical Isotopes, Inc.
  • Product number70690
  • Product description9-Hydroxy-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-α]pyrimidin-4-one
  • Packaging250mg
  • Price$2200
  • Updated2021-12-16
  • Buy
  • ManufacturerTRC
  • Product numberTRC-H943115-250MG
  • Product description9-Hydroxy-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one
  • Packaging250mg
  • Price$1970
  • Updated2026-06-03
  • Buy
  • ManufacturerTRC
  • Product numberH943115
  • Product description9-Hydroxy-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one
  • Packaging25mg
  • Price$185
  • Updated2021-12-16
  • Buy
  • ManufacturerTRC
  • Product numberTRC-H943115-25MG
  • Product description9-Hydroxy-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one
  • Packaging25mg
  • Price$256
  • Updated2026-06-03
  • Buy
  • ManufacturerUsbiological
  • Product number440430
  • Product description9-Hydroxy-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one
  • Packaging25mg
  • Price$509
  • Updated2026-06-03
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA00ABX6 9-Hydroxy-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one 95% 1g $226 2026-05-28 Buy
aablocks AA00ABX6 9-Hydroxy-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one 95% 250mg $128 2026-05-28 Buy
aablocks AA00ABX6 9-Hydroxy-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one 95% 100mg $89 2026-05-28 Buy
ACHEMBLOCK Y231383 9-Hydroxy-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one 95% 1G $215 2026-05-27 Buy
ACHEMBLOCK Y231383 9-Hydroxy-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one 95% 5G $860 2026-05-27 Buy
Chemenu CM167905 9-hydroxy-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one 97% 5g $152 2026-05-26 Buy
Chemenu CM167905 9-hydroxy-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one 97% 5g $152 2026-05-20 Buy
Medical Isotopes, Inc. 70690 9-Hydroxy-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-α]pyrimidin-4-one 250mg $2200 2021-12-16 Buy
TRC TRC-H943115-250MG 9-Hydroxy-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one 250mg $1970 2026-06-03 Buy
TRC H943115 9-Hydroxy-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one 25mg $185 2021-12-16 Buy
TRC TRC-H943115-25MG 9-Hydroxy-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one 25mg $256 2026-06-03 Buy
Usbiological 440430 9-Hydroxy-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one 25mg $509 2026-06-03 Buy

Properties

Melting point :145-148°C
Boiling point :437.4±55.0 °C(Predicted)
Density :1.38±0.1 g/cm3(Predicted)
vapor pressure :0-0Pa at 20-25℃
storage temp. :-20°C Freezer
solubility :Chloroform (Slightly), Methanol (Slightly)
pka :8.09±0.20(Predicted)
form :Solid
color :Beige
LogP :0.19 at 20℃ and pH7

Safety Information

Symbol(GHS): Exclamation Mark (GHS07)Health Hazard (GHS08)
Signal word: Danger
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
H341 Suspected of causing genetic defects Germ cell mutagenicity Category 2 Warning P201,P202, P281, P308+P313, P405,P501
H412 Harmful to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 3 P273, P501
Precautionary statements:
P201 Obtain special instructions before use.
P202 Do not handle until all safety precautions have been read and understood.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P273 Avoid release to the environment.
P281 Use personal protective equipment as required.
P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P308+P313 IF exposed or concerned: Get medical advice/attention.
P330 Rinse mouth.
P405 Store locked up.
P501 Dispose of contents/container to..…

Description

9-Hydroxy-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one is an intermediate in the synthesis of analog of Paliperidone, a combined serotonin and dopamine receptor antagonist.

More related product prices

84163-13-3 (S)-9-Hydroxy Risperidone 9-Benxyloxy-3-(2-Chloro ethyl)-2-methyl pyrido[1,2-a]pyrimidine-4-one 5-Fluoro Paliperidone (R)-9-Hydroxy Risperidone Paliperidone 4H-Pyrido[1,2-a]pyriMidin-4-one, 3-ethyl-6,7,8,9-tetrahydro-9-hydroxy-2-Methyl- 3-(2-Chloroethyl)-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one

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Suppliers and manufacturers

ATK CHEMICAL COMPANY LIMITED
Standardpharm Co. Ltd.
AFINE CHEMICALS LIMITED
Hangzhou Huarong Pharm Co., Ltd.
Hefei TNJ Chemical Industry Co.,Ltd.
Moxin Chemicals
XIAMEN AMITY INDUSTRY AND TRADE CO., LTD.
Sinco Pharmachem (ShenZhen) R&D Co., Ltd.
Amadis Chemical Company Limited
Shanghai Payne Pharmaceutical Technology Co.Ltd