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Pharmacopeial Impurities (EP / USP / BP)

Phenobarbital EP Impurity C

Reference StandardIn stock

Order Phenobarbital EP Impurity C (CAS 76-94-8) online at Zemixal: C11H10N2O3, COA and SDS with every lot, worldwide shipping.

Pack sizes
Phenobarbital EP Impurity C chemical structure
CAS number76-94-8
FormulaC11H10N2O3
Molar mass218.21 g/mol
Physical formSolid
HS code38229090
InChIKeyLSAOZCAKUIANSQ-UHFFFAOYSA-N
IUPAC name5-methyl-5-phenyl-1,3-diazinane-2,4,6-trione

About Phenobarbital EP Impurity C

Phenobarbital EP Impurity C belongs to the Phenobarbital reference-standard family in the Zemixal catalogue. Key data (Reference Standard): CAS 76-94-8, formula C11H10N2O3 and molar mass 218.21 g/mol. It is handled as a solid.

Where it is used

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

Handling and storage

Hazard communication follows GHS (Warning: H302). Our SDS lists exposure controls and first-aid measures.

Available as 10 mg, 25 mg, 50 mg, 100 mg and 250 mg. Larger or split packs can be arranged. Each lot travels with a certificate of analysis with characterisation data. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Phenobarbital

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

Phenobarbital standards

Typical uses

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

Applications

Grade guides

Specifications and identifiers

Specifications of Phenobarbital EP Impurity C
Product namePhenobarbital EP Impurity C
Catalogue numberZX-005889
CAS number76-94-8
Other CAS numbers81913-67-9, 144965-72-0
IUPAC name5-methyl-5-phenyl-1,3-diazinane-2,4,6-trione
Molecular formulaC11H10N2O3
Molar mass218.21 g/mol
Exact mass218.0691
GradeReference Standard
Physical formSolid
XLogP31.1
H-bond donors / acceptors2 / 3
Topological polar surface area75.3 Ų
HS code38229090
InChIKeyLSAOZCAKUIANSQ-UHFFFAOYSA-N
SMILESCC1(C(=O)NC(=O)NC1=O)C2=CC=CC=C2
PubChem CID66160
Synonyms5-Methyl-5-phenylbarbituric acid, 5-Methyl-5-phenylbarbityric acid, 2,4,6-Trioxo-5-methyl-5-phenylhexahydropyrimidine, Eudan, Heptobarbital, Mephebarbital, Methylphenylbarbital, Phenylmethylbarbituric acid, Rutonal, 5-Methyl-5-phenyl-2,4,6(1H,3H,5H)-pyrimidinetrione, 5-Phenyl-5-methylbarbituric acid, Barbituric acid, 5-methyl-5-phenyl-

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 Phenobarbital EP Impurity C
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request
250 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 Phenobarbital EP Impurity C

Which CAS number identifies Phenobarbital EP Impurity C?
Phenobarbital EP Impurity C is registered under CAS 76-94-8. You may also see it listed as 5-Methyl-5-phenylbarbituric acid, 5-Methyl-5-phenylbarbityric acid, 2,4,6-Trioxo-5-methyl-5-phenylhexahydropyrimidine. Our catalogue number for this item is ZX-005889.
What are the formula and molar mass of Phenobarbital EP Impurity C?
For Phenobarbital EP Impurity C, its formula is C11H10N2O3 and its molar mass is 218.21 g/mol. The systematic (IUPAC) name is 5-methyl-5-phenyl-1,3-diazinane-2,4,6-trione. InChIKey LSAOZCAKUIANSQ-UHFFFAOYSA-N lets you match it in any structure database.
How is Phenobarbital EP Impurity C used in pharmaceutical QC?
Phenobarbital EP Impurity C is a characterised reference material linked to Phenobarbital. 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 Phenobarbital EP Impurity C?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg, 250 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Phenobarbital EP Impurity C?
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 Phenobarbital EP Impurity C to my country?
Yes. Because Phenobarbital EP Impurity C 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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