2(1H)-Pyrimidinone, 4-(methylamino)- (9CI)

Modify Date: 2026-08-03 16:27:07

2(1H)-Pyrimidinone, 4-(methylamino)- (9CI) Structure
2(1H)-Pyrimidinone, 4-(methylamino)- (9CI) structure
Common Name 2(1H)-Pyrimidinone, 4-(methylamino)- (9CI)
CAS Number 6220-47-9 Molecular Weight 125.12900
Density 1.31g/cm3 Boiling Point 395ºC at 760 mmHg
Molecular Formula C5H7N3O Melting Point N/A
MSDS N/A Flash Point 192.7ºC

Summary: N4-methylcytosine, also known as 2(1H)-Pyrimidinone, 4-(methylamino)- (9CI), with CAS number 6220-47-9, has a molecular formula of C5H7N3O and a molecular weight of 125.12900. Its boiling point is 395ºC and density is 1.31g/cm³. For use in biochemical research. For research-use only, not for medical or clinical usage.


 Names

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

Name N4-methylcytosine
Synonym More Synonyms

 Chemical & Physical Properties

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

Density 1.31g/cm3
Boiling Point 395ºC at 760 mmHg
Molecular Formula C5H7N3O
Molecular Weight 125.12900
Flash Point 192.7ºC
Exact Mass 125.05900
PSA 57.78000
Index of Refraction 1.609
InChIKey PJKKQFAEFWCNAQ-UHFFFAOYSA-N
SMILES CNc1ccnc(=O)[nH]1

 Safety Information

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

Hazard Codes Xi
Risk Phrases 20/21/22
Safety Phrases 3/7-36/37
HS Code 29335990

 Synonyms

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

4-methylamino-1H-pyrimidin-2-one
Cytidine,N-methyl
4-N-Methylcytidine
N(4)-methylcytosine
6-(Methylamino)pyrimidin-2(1H)-one
N4-methylcytidine
N-methylcytosine
N4-Methyl-cytidin
N4-Methylcytosin
4-Methylamino-1H-pyrimidin-2-on
2(1H)-Pyrimidinone, 4-(methylamino)- (9CI)

  | FAQ

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

Q: What English synonyms does N4-methylcytosine have?
A: English synonyms of N4-methylcytosine: 4-methylamino-1H-pyrimidin-2-one, Cytidine,N-methyl, 4-N-Methylcytidine, N(4)-methylcytosine, 6-(Methylamino)pyrimidin-2(1H)-one, N4-methylcytidine, N-methylcytosine, N4-Methyl-cytidin, N4-Methylcytosin, 4-Methylamino-1H-pyrimidin-2-on, 2(1H)-Pyrimidinone, 4-(methylamino)- (9CI).
Q: What is the boiling point of N4-methylcytosine?
A: Boiling point of N4-methylcytosine is 395ºC at 760 mmHg.
Q: What is the CAS number of N4-methylcytosine?
A: CAS number of N4-methylcytosine is 6220-47-9.
Q: What is the molecular formula of N4-methylcytosine?
A: Molecular formula of N4-methylcytosine is C5H7N3O.
Q: What is the safety information for N4-methylcytosine?
A: Safety information for N4-methylcytosine: 3/7-36/37.
Q: What is the SMILES notation of N4-methylcytosine?
A: SMILES notation of N4-methylcytosine is CNc1ccnc(=O)[nH]1.
Q: What is the polar surface area (PSA) of N4-methylcytosine?
A: Polar surface area (PSA) of N4-methylcytosine is 57.78000.
Q: What is the English name of N4-methylcytosine?
A: The English name of N4-methylcytosine is N4-methylcytosine.
Q: What is the InChIKey of N4-methylcytosine?
A: InChIKey of N4-methylcytosine is PJKKQFAEFWCNAQ-UHFFFAOYSA-N.
Q: What is the molecular weight of N4-methylcytosine?
A: Molecular weight of N4-methylcytosine is 125.12900.

 factory

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.
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