5-methylcytosine

Name: 5-methylcytosine
Brand: 济南圣和化工有限公司

CAS 554-01-8C5H7N3OMW 125.13

5-methylcytosine，CAS 登记号 554-01-8，由济南圣和化工有限公司现货供应，可提供纯度按批次COA提供(不公开发布) 的规格，下游主要用于Organic Chemicals。支持样品与小批量试用，批量价格请联系我们获取，验收以批次 COA 为准。

规格参数

CAS号554-01-8

分子式C5H7N3O

分子量125.13

熔点270 °C

LogP-0.8

纯度按批次COA提供(不公开发布)

包装按订单/批次确认(不公开发布)

应用领域Organic Chemicals

类别Organic Chemicals

用途与场景

Organic Chemicals

包装与供货

包装规格按订单/批次确认(不公开发布)

纯度规格按批次COA提供(不公开发布)

储存条件密封、阴凉干燥处保存

供货周期现货/按订单安排

文件与支持

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常见问题

在哪里能查到 5-methylcytosine 的 CAS 号？

本页已列出 5-methylcytosine 的 CAS 号：554-01-8，可与随货 COA 核对。

可以提供哪些规格和包装？

常见纯度为按批次COA提供(不公开发布)，包装形式为按订单/批次确认(不公开发布)，特殊规格可在询价时说明。

5-methylcytosine 一般用在什么产品里？

主要涉及Organic Chemicals。

下单流程是怎样的？

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PubChem 公开数据

Description

5-methylcytosine · CAS 554-01-8 · C5H7N3O. UNII 6R795CQT4H. Melting Point: 270 °C; Solubility: 34.5 mg/mL; Collision Cross Section: 135.7 Å² [M+Na]+.

Identification

CAS Registry Number	554-01-8
PubChem CID	65040
Molecular formula	C5H7N3O
IUPAC name	6-amino-5-methyl-1H-pyrimidin-2-one
UNII (FDA)	6R795CQT4H

Computed Descriptors

Molecular Weight	125.13
XLogP3	-0.8
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	0
Exact Mass	125.058911855
Monoisotopic Mass	125.058911855
Topological Polar Surface Area	67.5
Heavy Atom Count	9
Formal Charge	0

Physical & Chemical Properties

Melting Point	270 °C
Solubility	34.5 mg/mL
Collision Cross Section	135.7 Å² [M+Na]+
Collision Cross Section	125.7 Å² [M+H]+
Collision Cross Section	121.1 Å² [M+H]+

Physical description & handling notes

Solid
135.5 Å² [M+Na]+ [CCS Type: DT; Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]
125.4 Å² [M+H]+ [CCS Type: DT; Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]
121 Å² [M+H]+ [CCS Type: DT; Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]

GHS Hazard Classification

Reported hazard statements	H317 (95.1%), H319 (100%)

H317 (95.1%): May cause an allergic skin reaction [Warning Sensitization, Skin]

H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

Synonyms

5-Methylcytosine; 554-01-8; 2(1H)-Pyrimidinone, 4-amino-5-methyl-; 6-amino-5-methyl-1H-pyrimidin-2-one; 6R795CQT4H; DTXSID50203948; NSC-137776; CHEBI:27551; 5 Methylcytosine; 6-amino-5-methyl-1,2-dihydropyrimidin-2-one; 5 Methylcytosine Monohydrochloride; Monohydrochloride, 5-Methylcytosine; RefChem:103183; DTXCID80126439; 209-058-3; 4-amino-5-methylpyrimidin-2(1H)-one

Frequently Asked Questions

What are the CAS number and molecular formula of 5-methylcytosine?

CAS 554-01-8; molecular formula C5H7N3O; molecular weight — g/mol.

What other names is 5-methylcytosine known by?

5-Methylcytosine, 554-01-8, 2(1H)-Pyrimidinone, 4-amino-5-methyl-, 6-amino-5-methyl-1H-pyrimidin-2-one, 6R795CQT4H, DTXSID50203948.

Is 5-methylcytosine classified as hazardous?

Hazard statements reported: H317, H319.

What are the key physical properties of 5-methylcytosine?

Melting Point: 270 °C; Solubility: 34.5 mg/mL; Collision Cross Section: 135.7 Å² [M+Na]+; Collision Cross Section: 125.7 Å² [M+H]+.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.

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