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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

$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%
Packaging100mg
Price$89
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%
Packaging1g
Price$226
Updated2026-05-28
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

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

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 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

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

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%	100mg	$89	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%	1g	$226	2026-05-28	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
ACHEMBLOCK	Y231383	9-Hydroxy-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one 95%	1G	$215	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	TRC-H943115-25MG	9-Hydroxy-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one	25mg	$256	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
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):

Signal word:

Danger

Hazard statements:

Code	Hazard statements	Hazard class	Category	Signal word	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

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

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

Properties

Safety Information

Description

Related product price

Suppliers and manufacturers