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Pharmacopeial Impurities (EP / USP / BP)

Ampicillin EP Impurity H

Reference StandardAvailable on request

Buy Ampicillin EP Impurity H (CAS 73200-73-4) from Zemixal. Request a quote with price, lead time and documents. Packs from 10 mg.

Pack sizes
Ampicillin EP Impurity H chemical structure
CAS number73200-73-4
FormulaC10H8N2O
Molar mass172.18 g/mol
Physical formSolid
HS code38229090
InChIKeySYPKOIOSVWYKHO-UHFFFAOYSA-N
IUPAC name3-phenyl-1H-pyrazin-2-one

About Ampicillin EP Impurity H

Analytical teams working on Ampicillin use Ampicillin EP Impurity H as a qualified comparison standard. Identity at a glance (Reference Standard): CAS 73200-73-4, formula C10H8N2O and molar mass 172.18 g/mol. It is handled as a solid.

Typical applications

  • Pharmacopeial method verification
  • Impurity profiling
  • QC release testing
  • ANDA / DMF filings

Safe handling

It carries the GHS signal word Warning (H302), 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. Each lot travels with a certificate of analysis with characterisation data. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Reference standards for Ampicillin

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

Ampicillin standards

Typical uses

  • Pharmacopeial method verification
  • Impurity profiling
  • QC release testing
  • ANDA / DMF filings

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Grade guides

Ph. Eur. Grade (European Pharmacopoeia)

Specifications and identifiers

Specifications of Ampicillin EP Impurity H
Product nameAmpicillin EP Impurity H
Catalogue numberZX-033030
CAS number73200-73-4
IUPAC name3-phenyl-1H-pyrazin-2-one
Molecular formulaC10H8N2O
Molar mass172.18 g/mol
Exact mass172.0637
GradeReference Standard
Physical formSolid
XLogP30.9
H-bond donors / acceptors1 / 2
Topological polar surface area41.5 Ų
HS code38229090
InChIKeySYPKOIOSVWYKHO-UHFFFAOYSA-N
SMILESC1=CC=C(C=C1)C2=NC=CNC2=O
PubChem CID155966
Synonyms2-Hydroxy-3-phenylpyrazine, 2(1H)-Pyrazinone, 3-phenyl-, 3-phenylpyrazin-2-ol, 3-Phenylpyrazin-2(1H)-one, Pyrazinol, 3-phenyl-, 3-phenyl-1,2-dihydropyrazin-2-one, 3-Phenyl-2-pyrazinol, 3-phenylp, 3-phenyl pyrazinone, Cefaclor Impurity F, Cefaclor Impurity 43, 2-hydroxy-3-phenylpyrazin

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

Signal word Warning

  • H302Harmful if swallowed

Precautionary statements P264, P270, P301 + P317, P330, 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 Ampicillin EP Impurity H
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 Ampicillin EP Impurity H

Which CAS number identifies Ampicillin EP Impurity H?
Ampicillin EP Impurity H is registered under CAS 73200-73-4. You may also see it listed as 2-Hydroxy-3-phenylpyrazine, 2(1H)-Pyrazinone, 3-phenyl-, 3-phenylpyrazin-2-ol. Our catalogue number for this item is ZX-033030.
What are the formula and molar mass of Ampicillin EP Impurity H?
For Ampicillin EP Impurity H, its formula is C10H8N2O and its molar mass is 172.18 g/mol. The systematic (IUPAC) name is 3-phenyl-1H-pyrazin-2-one. InChIKey SYPKOIOSVWYKHO-UHFFFAOYSA-N lets you match it in any structure database.
How is Ampicillin EP Impurity H used in pharmaceutical QC?
Ampicillin EP Impurity H is a characterised reference material linked to Ampicillin. 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 Ampicillin EP Impurity H?
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 Ampicillin EP Impurity H?
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 Ampicillin EP Impurity H to my country?
Yes. Because Ampicillin EP Impurity H 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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