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Pharmacopeial Impurities (EP / USP / BP)

Levothyroxine EP Impurity C

Reference StandardIn stock

Order Levothyroxine EP Impurity C (CAS 51-24-1) online at Zemixal. Lab and bulk packs, batch COA, fast global delivery. Packs from 10 mg.

Pack sizes
Levothyroxine EP Impurity C chemical structure
CAS number51-24-1
FormulaC14H9I3O4
Molar mass621.93 g/mol
Physical formSolid
HS code38229090
InChIKeyUOWZUVNAGUAEQC-UHFFFAOYSA-N
IUPAC name2-[4-(4-hydroxy-3-iodophenoxy)-3,5-diiodophenyl]acetic acid

About Levothyroxine EP Impurity C

Levothyroxine EP Impurity C belongs to the Levothyroxine reference-standard family in the Zemixal catalogue. For your records (Reference Standard), the material is defined by CAS 51-24-1, formula C14H9I3O4 and molar mass 621.93 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

Classified under GHS with signal word Warning and hazard statements H302, H312 and H332. Read the SDS before first use.

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. 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 Levothyroxine

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

Levothyroxine 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 Levothyroxine EP Impurity C
Product nameLevothyroxine EP Impurity C
Catalogue numberZX-005787
CAS number51-24-1
IUPAC name2-[4-(4-hydroxy-3-iodophenoxy)-3,5-diiodophenyl]acetic acid
Molecular formulaC14H9I3O4
Molar mass621.93 g/mol
Exact mass621.7635
GradeReference Standard
Physical formSolid
XLogP34.5
H-bond donors / acceptors2 / 4
Topological polar surface area66.8 Ų
HS code38229090
InChIKeyUOWZUVNAGUAEQC-UHFFFAOYSA-N
SMILESC1=CC(=C(C=C1OC2=C(C=C(C=C2I)CC(=O)O)I)I)O
PubChem CID5803
Synonyms3,3',5-Triiodo Thyroacetic Acid, Tiratricol, 4-(4-Hydroxy-3-iodophenoxy)-3,5-diiodobenzeneacetic acid, Nidolin, T3A, Triac, Triacana, [(4-Hydroxy-3-iodo-4-phenoxy)-3,5-diiodophenyl]acetic acid, Triiodothyroacetic acid, T3-acetic acid, 2-(4-(4-hydroxy-3-iodophenoxy)-3,5-diiodophenyl)acetic acid, 3',3,5-Triiodothyroacetic acid

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
  • H312Harmful in contact with skin
  • H332Harmful if inhaled

Precautionary statements P261, P264, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P317, P321, P330, P362 + P364, 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 Levothyroxine 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 Levothyroxine EP Impurity C

Which CAS number identifies Levothyroxine EP Impurity C?
Levothyroxine EP Impurity C is registered under CAS 51-24-1. You may also see it listed as 3,3',5-Triiodo Thyroacetic Acid, Tiratricol, 4-(4-Hydroxy-3-iodophenoxy)-3,5-diiodobenzeneacetic acid. Our catalogue number for this item is ZX-005787.
What are the formula and molar mass of Levothyroxine EP Impurity C?
For Levothyroxine EP Impurity C, its formula is C14H9I3O4 and its molar mass is 621.93 g/mol. The systematic (IUPAC) name is 2-[4-(4-hydroxy-3-iodophenoxy)-3,5-diiodophenyl]acetic acid. InChIKey UOWZUVNAGUAEQC-UHFFFAOYSA-N lets you match it in any structure database.
How is Levothyroxine EP Impurity C used in pharmaceutical QC?
Levothyroxine EP Impurity C is a characterised reference material linked to Levothyroxine. 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 Levothyroxine 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 Levothyroxine 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 Levothyroxine EP Impurity C to my country?
Yes. Because Levothyroxine 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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