苯唑西林

Name: 苯唑西林
Brand: 济南圣和化工有限公司

CAS 66-79-5C19H19N3O5SMW 401.4

济南圣和化工主营供应苯唑西林（CAS 66-79-5），归类于有机化学品，分子式 C19H19N3O5S，分子量 401.4。我们面向国内化工贸易与生产企业提供稳定的现货供应，报价响应快，支持对公转账并可开具增值税发票。

产品概览

CAS号	66-79-5
分子式	C19H19N3O5S
分子量	401.4
熔点	188
LogP	2.38
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

应用领域

有机化学品

苯唑西林在有机化学品领域使用广泛。采购前请确认纯度等级与包装形式，以批次 COA 为验收依据。

包装与储存

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

运输常规化工运输

样品可协商提供

交期现货/按订单安排

供货能力：苯唑西林备有现货，包装形式为按订单/批次确认(不公开发布)。我们支持对公转账并开具增值税发票，山东省内可安排快速配送，省外按物流时效发货，具体请联系 info@591daili.com。

质量与文件

每批产品随货提供 COA（分析证书）；可按需提供 MSDS/技术数据表及第三方检测报告。纯度与包装以批次 COA 及订单确认为准。

关于供应商

选择济南圣和化工有限公司的理由：产品信息透明（含 CAS、分子式、理化参数）、报价响应快（一个工作日内）、单证齐全（COA/MSS/质检资料按需提供）、支持批量与长期协议供货。如需苯唑西林以外的配套原料，也欢迎一并列出需求清单。

常见问题

苯唑西林的 CAS 号是多少？

苯唑西林的 CAS 号为 66-79-5。

该产品的纯度和包装规格是什么？

常规纯度规格为按批次COA提供(不公开发布)，包装为按订单/批次确认(不公开发布)，随货提供 COA。

苯唑西林有什么用途？

主要应用于有机化学品。

如何购买或获取报价？

请发送邮件至 info@591daili.com 或通过 WhatsApp 联系，注明产品名称、CAS 号与需求数量，一个工作日内回复报价。供应商：济南圣和化工有限公司。

PubChem 公开数据

Description

oxacillin · CAS 66-79-5 · C19H19N3O5S. UNII UH95VD7V76. Melting Point: 188; Solubility: 13.9; Solubility: 8.62e-02 g/L.

Identification

CAS Registry Number	66-79-5
PubChem CID	6196
Molecular formula	C19H19N3O5S
IUPAC name	(2S,5R,6R)-3,3-dimethyl-6-[(5-methyl-3-phenyl-1,2-oxazole-4-carbonyl)amino]-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
UNII (FDA)	UH95VD7V76

Computed Descriptors

Molecular Weight	401.4
XLogP3	2.4
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	7
Rotatable Bond Count	4
Exact Mass	401.10454189
Monoisotopic Mass	401.10454189
Topological Polar Surface Area	138
Heavy Atom Count	28
Formal Charge	0

Physical & Chemical Properties

Melting Point	188
Solubility	13.9
Solubility	8.62e-02 g/L
LogP	2.38
LogP	2.4
Dissociation Constants	2.72
Collision Cross Section	198.25 Å² [M-H]-
Collision Cross Section	187.73 Å² [M+H]+
Collision Cross Section	194.45 Å² [M+Na]+

Physical description & handling notes

Solid
195.4 Å² [M+Na]+ [CCS Type: TW; Method: calibrated with Waters Major Mix]
191.5 Å² [M+H]+ [CCS Type: TW; Method: calibrated with Waters Major Mix]
193.63 Å² [M+K]+ [CCS Type: TW; Method: calibrated with polyalanine and drug standards]
185.59 Å² [M+H]+ [CCS Type: TW; Method: calibrated with polyalanine and drug standards]
191.51 Å² [M+Na]+ [CCS Type: TW; Method: calibrated with polyalanine and drug standards]

GHS Hazard Classification

Reported hazard statements	H315 (40%), H317 (20%), H319 (40%), H334 (80%), H335 (60%)

H315 (40%): Causes skin irritation [Warning Skin corrosion/irritation]

H317 (20%): May cause an allergic skin reaction [Warning Sensitization, Skin]

Documented Uses

Pharmaceuticals -> Animal Drugs -> Approved in Taiwan
Used in the treatment of resistant staphylococci infections.
Oxacillin is a parenteral, second generation penicillin antibiotic that is used to treat moderate-to-severe, penicillinase-resistant staphylococcal infections. Oxacillin has been linked to rare instances of clinically apparent, idiosyncratic liver injury, but it more commonly causes transient elevations in serum aminotransferases without jaundice.
Breast Feeding; Lactation; Milk, Human; Anti-Infective Agents; Antibacterial Agents; Penicillins
Penicillin (Penicillinase-Resistant)
Substances that inhibit the growth or reproduction of BACTERIA.

Synonyms

oxacillin; Oxazocillin; 66-79-5; Oxazocilline; Oxacilina; Oxacilline; Oxacillinum; 5-Methyl-3-phenyl-4-isoxazolyl-penicillin; Resistopen; Oxabel; CHEBI:7809; UH95VD7V76; Staphcillin V; (5-methyl-3-phenyl-4-isoxazolyl)penicillin; 6beta-(5-methyl-3-phenylisoxazol-4-yl)penicillanic acid; DTXSID8023397

Frequently Asked Questions

What are the CAS number and molecular formula of oxacillin?

CAS 66-79-5; molecular formula C19H19N3O5S; molecular weight — g/mol.

What other names is oxacillin known by?

oxacillin, Oxazocillin, 66-79-5, Oxazocilline, Oxacilina, Oxacilline.

Is oxacillin classified as hazardous?

Hazard statements reported: H315, H317, H319, H334, H335.

What are the key physical properties of oxacillin?

Melting Point: 188; Solubility: 13.9; Solubility: 8.62e-02 g/L; LogP: 2.38.

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.