二甲双胍

Name: 二甲双胍
Brand: 济南圣和化工有限公司

CAS 657-24-9C4H11N5MW 129.16

二甲双胍，CAS 登记号 657-24-9，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，下游主要用于有机化学品。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657-24-9

分子式C4H11N5

分子量129.16

熔点223-226 °C

沸点224.1ºC at 760 mmHg

LogP-2.6

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)

应用领域有机化学品

类别有机化学品

用途与场景

有机化学品

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

在哪里能查到二甲双胍的 CAS 号？

本页已列出二甲双胍的 CAS 号：657-24-9，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。

二甲双胍一般用在什么产品里？

主要涉及有机化学品。

下单流程是怎样的？

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PubChem 公开数据

Description

Metformin · CAS 657-24-9 · C4H11N5. UNII 9100L32L2N. Boiling Point: 224.1ºC at 760 mmHg; Melting Point: 223-226 °C; Melting Point: 223 - 226 °C.

Identification

CAS Registry Number	657-24-9
PubChem CID	4091
Molecular formula	C4H11N5
IUPAC name	3-(diaminomethylidene)-1,1-dimethylguanidine
UNII (FDA)	9100L32L2N

Computed Descriptors

Molecular Weight	129.16
XLogP3	-1.3
Hydrogen Bond Donor Count	3
Hydrogen Bond Acceptor Count	1
Rotatable Bond Count	2
Exact Mass	129.10144537
Monoisotopic Mass	129.10144537
Topological Polar Surface Area	91.5
Heavy Atom Count	9
Formal Charge	0

Physical & Chemical Properties

Boiling Point	224.1ºC at 760 mmHg
Melting Point	223-226 °C
Melting Point	223 - 226 °C
LogP	-2.6
Ionization Efficiency	3.49
Ionization Efficiency	2.7
Ionization Efficiency	MeCN (80%)
Dissociation Constants	12.4

Physical description & handling notes

Solid
Freely soluble
Stable under recommended storage conditions. /Metformin hydrochloride/
Hazardous decomposition products formed under fire conditions - Carbon oxides, nitrogen oxides (NOx), hydrogen chloride gas. /Metformin hydrochloride/
When heated to decomposition it emits toxic fumes of /nitric oxides/.
Positive

Regulatory Status

GHS notification summary	50% (2 / 4)

GHS Hazard Classification

GHS notification summary	50% (2 / 4)
Reported hazard statements	H302 (50%), H315, H319

This chemical does not meet GHS hazard criteria for 50% (2 of 4) of reports.

H302 (50%): Harmful if swallowed [Warning Acute toxicity, oral]

Documented Uses

Use (kg) in Switzerland (2009): >75000
Use (kg; approx.) in Germany (2009): >1000000
Use (kg) in USA (2002): 1450000
Use (kg) in France (2004): 716858
Consumption (g per capita) in Switzerland (2009): 9.6
Consumption (g per capita; approx.) in Germany (2009): 12

Synonyms

metformin; 657-24-9; 1,1-Dimethylbiguanide; N,N-dimethylimidodicarbonimidic diamide; Metiguanide; Dimethylbiguanide; Metformine; N,N-Dimethylbiguanide; Metformina; N1,N1-Dimethylbiguanide; N,N-Dimethyldiguanide; 3-(diaminomethylidene)-1,1-dimethylguanidine; Diaformin; Dimethylbiguanid; Metformin extended release; BIGUANIDE, 1,1-DIMETHYL-

Frequently Asked Questions

What are the CAS number and molecular formula of Metformin?

CAS 657-24-9; molecular formula C4H11N5; molecular weight — g/mol.

What other names is Metformin known by?

metformin, 657-24-9, 1,1-Dimethylbiguanide, N,N-dimethylimidodicarbonimidic diamide, Metiguanide, Dimethylbiguanide.

Is Metformin classified as hazardous?

50% of GHS notifications report no hazard classification (2 of 4).

What are the key physical properties of Metformin?

Boiling Point: 224.1ºC at 760 mmHg; Melting Point: 223-226 °C; Melting Point: 223 - 226 °C; LogP: -2.6.

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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