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Pharmacopeial Impurities (EP / USP / BP)

Paracetamol EP Impurity C

Reference StandardAvailable on request

Order Paracetamol EP Impurity C (CAS 3964-54-3) online at Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-022482.

Pack sizes
Paracetamol EP Impurity C chemical structure
CAS number3964-54-3
FormulaC8H8ClNO2
Molar mass185.61 g/mol
Physical formSolid
HS code38229090
InChIKeyJULKJDRBSRRBHT-UHFFFAOYSA-N
IUPAC nameN-(3-chloro-4-hydroxyphenyl)acetamide

About Paracetamol EP Impurity C

Paracetamol EP Impurity C is supplied by Zemixal as a characterised reference material for Paracetamol analysis. Key data (Reference Standard): CAS 3964-54-3, formula C8H8ClNO2 and molar mass 185.61 g/mol. It is handled as a solid.

Use cases we see most often

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

Storage and safety notes

It carries the GHS signal word Warning (H302, H315, H317 and H319), so wear gloves and eye protection and work with good ventilation.

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. Every shipment includes 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 Paracetamol

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

Paracetamol standards

Typical uses

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

Applications

Grade guides

Specifications and identifiers

Specifications of Paracetamol EP Impurity C
Product nameParacetamol EP Impurity C
Catalogue numberZX-022482
CAS number3964-54-3
IUPAC nameN-(3-chloro-4-hydroxyphenyl)acetamide
Molecular formulaC8H8ClNO2
Molar mass185.61 g/mol
Exact mass185.0244
GradeReference Standard
Physical formSolid
XLogP31.6
H-bond donors / acceptors2 / 2
Topological polar surface area49.3 Ų
HS code38229090
InChIKeyJULKJDRBSRRBHT-UHFFFAOYSA-N
SMILESCC(=O)NC1=CC(=C(C=C1)O)Cl
PubChem CID77579
SynonymsAcetaminophen EP Impurity C, Paracetamol - Impurity C, 4-Acetylamino-2-chlorophenol, 2-Chloro-4-acetamidophenol, 3'-Chloro-4'-hydroxyacetanilide, 3-Chloro-4-hydroxyacetanilide, Acetamide, N-(3-chloro-4-hydroxyphenyl)-, N-(3-Chloro-4-hydroxyphenyl)acetamide (3-Chloro-4-hydroxyacetanilide), N-(3-chloro-4-hydroxy-phenyl)acetamide, chloro-4-acetamidophenol

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
  • H315Causes skin irritation
  • H317May cause an allergic skin reaction
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation

Precautionary statements P261, P264, P264 + P265, P270, P271, P272, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P330, P332 + P317, P333 + P317, P337 + P317, P362 + P364, P403 + P233, P405, 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 Paracetamol EP Impurity C
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 Paracetamol EP Impurity C

Which CAS number identifies Paracetamol EP Impurity C?
Paracetamol EP Impurity C is registered under CAS 3964-54-3. You may also see it listed as Acetaminophen EP Impurity C, Paracetamol - Impurity C, 4-Acetylamino-2-chlorophenol. Our catalogue number for this item is ZX-022482.
What are the formula and molar mass of Paracetamol EP Impurity C?
For Paracetamol EP Impurity C, its formula is C8H8ClNO2 and its molar mass is 185.61 g/mol. The systematic (IUPAC) name is N-(3-chloro-4-hydroxyphenyl)acetamide. InChIKey JULKJDRBSRRBHT-UHFFFAOYSA-N lets you match it in any structure database.
How is Paracetamol EP Impurity C used in pharmaceutical QC?
Paracetamol EP Impurity C is a characterised reference material linked to Paracetamol. 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 Paracetamol EP Impurity C?
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 Paracetamol 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 Paracetamol EP Impurity C to my country?
Yes. Because Paracetamol 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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