4H-Pyrido[1,2-a]pyrimidine-3-carboxylicacid, 4-oxo-, ethyl ester

Modify Date: 2026-07-16 18:05:19

4H-Pyrido[1,2-a]pyrimidine-3-carboxylicacid, 4-oxo-, ethyl ester structure	Common Name	4H-Pyrido[1,2-a]pyrimidine-3-carboxylicacid, 4-oxo-, ethyl ester
	CAS Number	32092-18-5	Molecular Weight	218.20900
	Density	1.29g/cm3	Boiling Point	354.7ºC at 760 mmHg
	Molecular Formula	C₁₁H₁₀N₂O₃	Melting Point	110-111 °C
	MSDS	N/A	Flash Point	168.3ºC

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name	ethyl 4-oxopyrido[1,2-a]pyrimidine-3-carboxylate
Synonym	More Synonyms

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density	1.29g/cm3
Boiling Point	354.7ºC at 760 mmHg
Melting Point	110-111 °C
Molecular Formula	C₁₁H₁₀N₂O₃
Molecular Weight	218.20900
Flash Point	168.3ºC
Exact Mass	218.06900
PSA	60.67000
LogP	0.87120
Index of Refraction	1.605
InChIKey	LURYFDMBWJWDQH-UHFFFAOYSA-N
SMILES	CCOC(=O)c1cnc2ccccn2c1=O

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

Material Safety Data Sheet

Section1. Identiﬁcation of the substance
Product Name: Ethyl 4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxylate
Synonyms:

Section2. Hazards identiﬁcation
Harmful by inhalation, in contact with skin, and if swallowed.

Section3. Composition/information on ingredients.
Ingredient name:Ethyl 4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxylate
CAS number:32092-18-5

Section4. First aid measures
Skin contact:Immediately wash skin with copious amounts of water for at least 15 minutes while removing
contaminated clothing and shoes. If irritation persists, seek medical attention.
Eye contact:Immediately wash skin with copious amounts of water for at least 15 minutes. Assure adequate
ﬂushing of the eyes by separating the eyelids with ﬁngers. If irritation persists, seek medical
attention.
Inhalation:Remove to fresh air. In severe cases or if symptoms persist, seek medical attention.
Ingestion:Wash out mouth with copious amounts of water for at least 15 minutes. Seek medical attention.

Section5. Fire ﬁghting measures
In the event of a ﬁre involving this material, alone or in combination with other materials, use dry
powder or carbon dioxide extinguishers. Protective clothing and self-contained breathing apparatus
should be worn.

Section6. Accidental release measures
Personal precautions: Wear suitable personal protective equipment which performs satisfactorily and meets local/state/national
standards.
Respiratory precaution:Wear approved mask/respirator
Hand precaution:Wear suitable gloves/gauntlets
Skin protection:Wear suitable protective clothing
Eye protection:Wear suitable eye protection
Methods for cleaning up: Mix with sand or similar inert absorbent material, sweep up and keep in a tightly closed container
for disposal. See section 12.
Environmental precautions: Do not allow material to enter drains or water courses.

Section7. Handling and storage
Handling:This product should be handled only by, or under the close supervision of, those properly qualiﬁed
in the handling and use of potentially hazardous chemicals, who should take into account the ﬁre,
health and chemical hazard data given on this sheet.
Store in closed vessels.
Storage:

Section8. Exposure Controls / Personal protection
Engineering Controls: Use only in a chemical fume hood.
Personal protective equipment: Wear laboratory clothing, chemical-resistant gloves and safety goggles.
General hydiene measures: Wash thoroughly after handling. Wash contaminated clothing before reuse.

Section9. Physical and chemical properties
Appearance:Not speciﬁed
Boiling point:No data
No data
Melting point:
Flash point:No data
Density:No data
Molecular formula:C11H10N2O3
Molecular weight:218.2

Section10. Stability and reactivity
Conditions to avoid: Heat, ﬂames and sparks.
Materials to avoid: Oxidizing agents.
Possible hazardous combustion products: Carbon monoxide, nitrogen oxides.

Section11. Toxicological information
No data.

Section12. Ecological information
No data.

Section13. Disposal consideration
Arrange disposal as special waste, by licensed disposal company, in consultation with local waste
disposal authority, in accordance with national and regional regulations.

Section14. Transportation information
Non-harzardous for air and ground transportation.

Section15. Regulatory information
No chemicals in this material are subject to the reporting requirements of SARA Title III, Section
302, or have known CAS numbers that exceed the threshold reporting levels established by SARA
Title III, Section 313.

SECTION 16 - ADDITIONAL INFORMATION
N/A

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

HS Code	2933990090

This table lists upstream starting materials and downstream derivative products related to this chemical.

Precursor 3
CAS#:39080-52-9 diethyl 2-[(pyr... CAS#:504-29-0 2-Aminopyridine CAS#:87-13-8 Diethyl ethoxym...
DownStream 2
CAS#:23443-10-9 4H-PYRIDO[1,2-A... CAS#:38326-36-2 6,7,8,9-Tetrahy...

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

This table contains target information, in‑vitro & in‑vivo assay data for this compound.

Name: Discovery of Small Molecules to Inhibit Human Cytomegalovirus Nuclear Egress
Source: ICCB-Longwood/NSRB Screening Facility, Harvard Medical School
Target: HCMV UL50
External Id: HMS1262

Name: NCI human tumor cell line growth inhibition assay. Data for the MCF7 Non-Small Cell L...
Source: DTP/NCI
Target: N/A
External Id: MCF7_OneDose

Name: NCI human tumor cell line growth inhibition assay. Data for the IGROV1 Non-Small Cell...
Source: DTP/NCI
Target: N/A
External Id: IGROV1_OneDose

Name: A screen for compounds that inhibit the activity of LtaS in Staphylococcus aureus
Source: ICCB-Longwood/NSRB Screening Facility, Harvard Medical School
External Id: HMS979

Name: A screen for compounds that inhibit viral RNA polymerase binding and polymerization a...
Source: ICCB-Longwood/NSRB Screening Facility, Harvard Medical School
Target: Chain A, Poliovirus Polymerase With Gtp
External Id: HMS750

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This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

ethyl 4-oxo-4H-pyrido<1,2-a>pyrimidine-3-carboxylate

3-Carbethoxy-4-oxo-homopyrimidazol

4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxylic acid ethyl ester

4-Oxo-4H-pyrido[1,2-a]pyrimidin-3-carbonsaeure-aethylester

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What English synonyms does ethyl 4-oxopyrido[1,2-a]pyrimidine-3-carboxylate have?

A: English synonyms of ethyl 4-oxopyrido[1,2-a]pyrimidine-3-carboxylate: ethyl 4-oxo-4H-pyridopyrimidine-3-carboxylate, 3-Carbethoxy-4-oxo-homopyrimidazol, 4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxylic acid ethyl ester, 4-Oxo-4H-pyrido[1,2-a]pyrimidin-3-carbonsaeure-aethylester.

Q: What are the upstream materials of ethyl 4-oxopyrido[1,2-a]pyrimidine-3-carboxylate?

A: Related upstream materials(CAS) of ethyl 4-oxopyrido[1,2-a]pyrimidine-3-carboxylate: 39080-52-9;504-29-0;87-13-8.

Q: What is the polar surface area (PSA) of ethyl 4-oxopyrido[1,2-a]pyrimidine-3-carboxylate?

A: Polar surface area (PSA) of ethyl 4-oxopyrido[1,2-a]pyrimidine-3-carboxylate is 60.67000.

Q: What are the downstream products of ethyl 4-oxopyrido[1,2-a]pyrimidine-3-carboxylate?

A: Related downstream products(CAS) of ethyl 4-oxopyrido[1,2-a]pyrimidine-3-carboxylate: 23443-10-9;38326-36-2.

Q: What is the LogP of ethyl 4-oxopyrido[1,2-a]pyrimidine-3-carboxylate?

A: LogP of ethyl 4-oxopyrido[1,2-a]pyrimidine-3-carboxylate is 0.87120.

Q: What is the molecular weight of ethyl 4-oxopyrido[1,2-a]pyrimidine-3-carboxylate?

A: Molecular weight of ethyl 4-oxopyrido[1,2-a]pyrimidine-3-carboxylate is 218.20900.

Q: What is the SMILES notation of ethyl 4-oxopyrido[1,2-a]pyrimidine-3-carboxylate?

A: SMILES notation of ethyl 4-oxopyrido[1,2-a]pyrimidine-3-carboxylate is CCOC(=O)c1cnc2ccccn2c1=O.

Q: What is the molecular formula of ethyl 4-oxopyrido[1,2-a]pyrimidine-3-carboxylate?

A: Molecular formula of ethyl 4-oxopyrido[1,2-a]pyrimidine-3-carboxylate is C11H10N2O3.

Q: What is the boiling point of ethyl 4-oxopyrido[1,2-a]pyrimidine-3-carboxylate?

A: Boiling point of ethyl 4-oxopyrido[1,2-a]pyrimidine-3-carboxylate is 354.7ºC at 760 mmHg.

Q: What is the English name of ethyl 4-oxopyrido[1,2-a]pyrimidine-3-carboxylate?

A: The English name of ethyl 4-oxopyrido[1,2-a]pyrimidine-3-carboxylate is ethyl 4-oxopyrido[1,2-a]pyrimidine-3-carboxylate.

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd

Dayang Chem (Hangzhou) Co., Ltd.

The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.

4H-Pyrido[1,2-a]pyrimidine-3-carboxylicacid, 4-oxo-, ethyl ester

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The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.