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API Impurities

Benzylpenicillin

Reference StandardAvailable on request

Order Benzylpenicillin (CAS 61-33-6) online at Zemixal. Request a quote with price, lead time and documents. Catalogue no. ZX-023646.

Pack sizes
Benzylpenicillin chemical structure
CAS number61-33-6
FormulaC16H18N2O4S
Molar mass334.4 g/mol
Physical formSolid
HS code38229090
InChIKeyJGSARLDLIJGVTE-MBNYWOFBSA-N
IUPAC name(2S,5R,6R)-3,3-dimethyl-7-oxo-6-[(2-phenylacetyl)amino]-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

About Benzylpenicillin

Analytical teams working on Penicillin use Benzylpenicillin as a qualified comparison standard. For your records (Reference Standard), the material is defined by CAS 61-33-6, formula C16H18N2O4S and molar mass 334.4 g/mol. It is handled as a solid.

Where it is used

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Storage and safety notes

It carries the GHS signal word Danger (H317, H334, H400 and H412), so wear gloves and eye protection and work with good ventilation.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. You receive a certificate of analysis with characterisation data with each order. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Penicillin

See every impurity, metabolite and related compound we list for this API.

Penicillin standards

Typical uses

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Applications

Specifications and identifiers

Specifications of Benzylpenicillin
Product nameBenzylpenicillin
Catalogue numberZX-023646
CAS number61-33-6
IUPAC name(2S,5R,6R)-3,3-dimethyl-7-oxo-6-[(2-phenylacetyl)amino]-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
Molecular formulaC16H18N2O4S
Molar mass334.4 g/mol
Exact mass334.0987
GradeReference Standard
Physical formSolid
XLogP31.8
H-bond donors / acceptors2 / 5
Topological polar surface area112 Ų
HS code38229090
InChIKeyJGSARLDLIJGVTE-MBNYWOFBSA-N
SMILESCC1([C@@H](N2[C@H](S1)[C@@H](C2=O)NC(=O)CC3=CC=CC=C3)C(=O)O)C
PubChem CID5904
Synonymspenicillin g, Benzylpenicillinic acid, Liquacillin, Free penicillin II, Specilline G, Dropcillin, Free penicillin G, Gelacillin, Pharmacillin, Cilloral, Benzylpenicilline

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful
GHS08 Health hazard
Health hazard
GHS09 Hazardous to the environment
Hazardous to the environment

Signal word Danger

  • H317May cause an allergic skin reaction
  • H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
  • H400Very toxic to aquatic life
  • H412Harmful to aquatic life with long lasting effects

Precautionary statements P233, P260, P261, P271, P272, P273, P280, P284, P302 + P352, P304 + P340, P321, P333 + P317, P342 + P316, P362 + P364, P391, P403, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Benzylpenicillin
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Benzylpenicillin

Which CAS number identifies Benzylpenicillin?
Benzylpenicillin is registered under CAS 61-33-6. You may also see it listed as penicillin g, Benzylpenicillinic acid, Liquacillin. Our catalogue number for this item is ZX-023646.
What are the formula and molar mass of Benzylpenicillin?
For Benzylpenicillin, its formula is C16H18N2O4S and its molar mass is 334.4 g/mol. The systematic (IUPAC) name is (2S,5R,6R)-3,3-dimethyl-7-oxo-6-[(2-phenylacetyl)amino]-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid. InChIKey JGSARLDLIJGVTE-MBNYWOFBSA-N lets you match it in any structure database.
How is Benzylpenicillin used in pharmaceutical QC?
Benzylpenicillin is a characterised reference material linked to Penicillin. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for Benzylpenicillin?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Benzylpenicillin?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Benzylpenicillin to my country?
Yes. Because Benzylpenicillin is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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