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ChemicalBook >> CAS DataBase List >> 3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-α]pyrimidin-4-one (Risperidone Impurity)

3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-α]pyrimidin-4-one (Risperidone Impurity)

3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-α]pyrimidin-4-one (Risperidone Impurity) price.
  • $139.9 - $2292.25
  • Product name: 3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-α]pyrimidin-4-one (Risperidone Impurity)
  • CAS: 70381-58-7
  • MF: C11H16N2O
  • MW: 192.26
  • EINECS:
  • MDL Number:
  • Synonyms:3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-α]pyrimidin-4-one (Risperidone Impurity);3-Ethyl-6,7,8,9-tetrahydro-2-methyl-4H-pyrido[1,2-α]pyrimidin-4-one;3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one(Risperidone Impurity);3-Ethyl-6,7,8,9-tetrahydro-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one;Risperidone Ethyl Impurity;3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one;Risperidone Impurity 23;Paliperidone Impurity 27
Price25 Properties Safety Information Description
25 prices
Selected condition：
Brand
  • aablocks
  • Ambeed
  • American Custom Chemicals Corporation
  • Biosynth
  • Medical Isotopes, Inc.
  • TRC
  • Usbiological
Package
  • 1MG
  • 2mg
  • 2.5mg
  • 5mg
  • 10mg
  • 25MG
  • 50mg
  • 100mg
  • 250mg
  • 500mg
  • 1g
  • Manufactureraablocks
  • Product numberAA0069A7
  • Product description3-ethyl-2-methyl-4H,6H,7H,8H,9H-pyrido[1,2-a]pyrimidin-4-one 95.00%
  • Packaging50mg
  • Price$297
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA0069A7
  • Product description3-ethyl-2-methyl-4H,6H,7H,8H,9H-pyrido[1,2-a]pyrimidin-4-one 95.00%
  • Packaging100mg
  • Price$423
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA0069A7
  • Product description3-ethyl-2-methyl-4H,6H,7H,8H,9H-pyrido[1,2-a]pyrimidin-4-one 95.00%
  • Packaging250mg
  • Price$588
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA0069A7
  • Product description3-ethyl-2-methyl-4H,6H,7H,8H,9H-pyrido[1,2-a]pyrimidin-4-one 95.00%
  • Packaging500mg
  • Price$904
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA0069A7
  • Product description3-ethyl-2-methyl-4H,6H,7H,8H,9H-pyrido[1,2-a]pyrimidin-4-one 95.00%
  • Packaging1g
  • Price$1145
  • Updated2026-05-28
  • Buy
  • ManufacturerAmbeed
  • Product numberA1536632
  • Product description3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one 95%
  • Packaging250mg
  • Price$583
  • Updated2026-06-05
  • Buy
  • ManufacturerAmbeed
  • Product numberA1536632
  • Product description3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one 95%
  • Packaging50mg
  • Price$278
  • Updated2026-06-05
  • Buy
  • ManufacturerAmbeed
  • Product numberA1536632
  • Product description3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one 95%
  • Packaging100mg
  • Price$410
  • Updated2026-06-05
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberAPI0026021
  • Product description3-ETHYL-2-METHYL-6,7,8,9-TETRAHYDRO-4H-PYRIDO(1,2-A)PYRIMIDIN-4-ONE 95.00%
  • Packaging1MG
  • Price$315
  • Updated2021-12-16
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberAPI0026021
  • Product description3-ETHYL-2-METHYL-6,7,8,9-TETRAHYDRO-4H-PYRIDO(1,2-A)PYRIMIDIN-4-ONE 95.00%
  • Packaging25MG
  • Price$1871.1
  • Updated2021-12-16
  • Buy
  • ManufacturerBiosynth
  • Product numberIE23102
  • Product description3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one
  • Packaging25mg
  • Price$2292.25
  • Updated2026-06-04
  • Buy
  • ManufacturerBiosynth
  • Product numberIE23102
  • Product description3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one
  • Packaging10mg
  • Price$1260.7
  • Updated2026-06-04
  • Buy
  • ManufacturerBiosynth
  • Product numberIE23102
  • Product description3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one
  • Packaging25mg
  • Price$1529
  • Updated2021-12-16
  • Buy
  • ManufacturerBiosynth
  • Product numberIE23102
  • Product description3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one
  • Packaging2mg
  • Price$381.4
  • Updated2026-06-04
  • Buy
  • ManufacturerBiosynth
  • Product numberIE23102
  • Product description3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one
  • Packaging1mg
  • Price$139.9
  • Updated2021-12-16
  • Buy
  • ManufacturerBiosynth
  • Product numberIE23102
  • Product description3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one
  • Packaging1mg
  • Price$250
  • Updated2026-06-04
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA0069A7 3-ethyl-2-methyl-4H,6H,7H,8H,9H-pyrido[1,2-a]pyrimidin-4-one 95.00% 50mg $297 2026-05-28 Buy
aablocks AA0069A7 3-ethyl-2-methyl-4H,6H,7H,8H,9H-pyrido[1,2-a]pyrimidin-4-one 95.00% 100mg $423 2026-05-28 Buy
aablocks AA0069A7 3-ethyl-2-methyl-4H,6H,7H,8H,9H-pyrido[1,2-a]pyrimidin-4-one 95.00% 250mg $588 2026-05-28 Buy
aablocks AA0069A7 3-ethyl-2-methyl-4H,6H,7H,8H,9H-pyrido[1,2-a]pyrimidin-4-one 95.00% 500mg $904 2026-05-28 Buy
aablocks AA0069A7 3-ethyl-2-methyl-4H,6H,7H,8H,9H-pyrido[1,2-a]pyrimidin-4-one 95.00% 1g $1145 2026-05-28 Buy
Ambeed A1536632 3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one 95% 250mg $583 2026-06-05 Buy
Ambeed A1536632 3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one 95% 50mg $278 2026-06-05 Buy
Ambeed A1536632 3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one 95% 100mg $410 2026-06-05 Buy
American Custom Chemicals Corporation API0026021 3-ETHYL-2-METHYL-6,7,8,9-TETRAHYDRO-4H-PYRIDO(1,2-A)PYRIMIDIN-4-ONE 95.00% 1MG $315 2021-12-16 Buy
American Custom Chemicals Corporation API0026021 3-ETHYL-2-METHYL-6,7,8,9-TETRAHYDRO-4H-PYRIDO(1,2-A)PYRIMIDIN-4-ONE 95.00% 25MG $1871.1 2021-12-16 Buy
Biosynth IE23102 3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one 25mg $2292.25 2026-06-04 Buy
Biosynth IE23102 3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one 10mg $1260.7 2026-06-04 Buy
Biosynth IE23102 3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one 25mg $1529 2021-12-16 Buy
Biosynth IE23102 3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one 2mg $381.4 2026-06-04 Buy
Biosynth IE23102 3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one 1mg $139.9 2021-12-16 Buy
Biosynth IE23102 3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one 1mg $250 2026-06-04 Buy
Next Last

Properties

Melting point :68-70C
Boiling point :146-148 °C(Press: 6 Torr)
Density :1.17±0.1 g/cm3(Predicted)
storage temp. :Refrigerator
solubility :Chloroform (Slightly), Methanol (Slightly)
pka :3.89±0.70(Predicted)
form :Solid
color :White to Off-White

Safety Information

Symbol(GHS):
Signal word:
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
Precautionary statements:

Description

Risperidone (R525000) impurity.

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Suppliers and manufacturers

sgtlifesciences pvt ltd
QUALITY CONTROL SOLUTIONS LTD. J & K SCIENTIFIC LTD. Chemsky（shanghai）International Co.,Ltd. Clearsynth Labs Limited Quality Control Solutions Ltd. Pharmacodia (Beijing) Co.,Ltd Shenzhen SUNGENING Bio-Medical Co., Ltd. Shenzhen Polymeri Biochemical Technology Co., Ltd. Cato Research Chemicals Inc.