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Pharmacopeial Impurities (EP / USP / BP)

Mesalazine EP Impurity I

Reference StandardAvailable on request

Mesalazine EP Impurity I (CAS 3147-53-3) supplier Zemixal: C13H10N2O3, COA and SDS with every lot, worldwide shipping. Catalogue no. ZX-022101.

Pack sizes
Mesalazine EP Impurity I chemical structure
CAS number3147-53-3
FormulaC13H10N2O3
Molar mass242.23 g/mol
Physical formSolid
HS code38229090
InChIKeyJHDYSXXPQIFFJZ-UHFFFAOYSA-N
IUPAC name2-hydroxy-5-phenyldiazenylbenzoic acid

About Mesalazine EP Impurity I

Zemixal lists Mesalazine EP Impurity I for laboratories that identify, quantify or control Mesalazine and its related substances. Identity at a glance (Reference Standard): CAS 3147-53-3, formula C13H10N2O3 and molar mass 242.23 g/mol. It is handled as a solid.

Common uses in the lab and plant

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

Storage and safety notes

It carries the GHS signal word Warning (H302 and H319), 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 Mesalazine

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

Mesalazine 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 Mesalazine EP Impurity I
Product nameMesalazine EP Impurity I
Catalogue numberZX-022101
CAS number3147-53-3
IUPAC name2-hydroxy-5-phenyldiazenylbenzoic acid
Molecular formulaC13H10N2O3
Molar mass242.23 g/mol
Exact mass242.0691
GradeReference Standard
Physical formSolid
XLogP34.3
H-bond donors / acceptors2 / 5
Topological polar surface area82.3 Ų
HS code38229090
InChIKeyJHDYSXXPQIFFJZ-UHFFFAOYSA-N
SMILESC1=CC=C(C=C1)N=NC2=CC(=C(C=C2)O)C(=O)O
PubChem CID76603
SynonymsMesalamine impurity I, Mesalamine EP Impurity I, Mesalazine - Impurity I, 5-(Phenylazo)salicylic acid, 2-Hydroxy-5-(phenyldiazenyl)benzoic acid, Phenylazosalicylic Acid, 2-Hydroxy-5-(2-phenyldiazenyl)benzoic Acid, Benzoic acid, 2-hydroxy-5-(phenylazo)-, 2-Hydroxy-5-(phenylazo)benzoic Acid, (E)-2-hydroxy-5-(phenyldiazenyl)benzoic acid, 2-hydroxy-5-phenyldiazenyl benzoic acid, CK 46A

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
  • H319Causes serious eye irritation

Precautionary statements P264, P264 + P265, P270, P280, P301 + P317, P305 + P351 + P338, P330, P337 + P317, 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 Mesalazine EP Impurity I
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 Mesalazine EP Impurity I

Which CAS number identifies Mesalazine EP Impurity I?
Mesalazine EP Impurity I is registered under CAS 3147-53-3. You may also see it listed as Mesalamine impurity I, Mesalamine EP Impurity I, Mesalazine - Impurity I. Our catalogue number for this item is ZX-022101.
What are the formula and molar mass of Mesalazine EP Impurity I?
For Mesalazine EP Impurity I, its formula is C13H10N2O3 and its molar mass is 242.23 g/mol. The systematic (IUPAC) name is 2-hydroxy-5-phenyldiazenylbenzoic acid. InChIKey JHDYSXXPQIFFJZ-UHFFFAOYSA-N lets you match it in any structure database.
How is Mesalazine EP Impurity I used in pharmaceutical QC?
Mesalazine EP Impurity I is a characterised reference material linked to Mesalazine. 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 Mesalazine EP Impurity I?
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 Mesalazine EP Impurity I?
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 Mesalazine EP Impurity I to my country?
Yes. Because Mesalazine EP Impurity I 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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