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Pharmacopeial Impurities (EP / USP / BP)

Levothyroxine EP Impurity H (Stage -5)

Reference StandardIn stock

Order Levothyroxine EP Impurity H (Stage -5) (CAS 33927-09-2) online at Zemixal. Request a quote with price, lead time and documents.

Pack sizes
Levothyroxine EP Impurity H (Stage -5) chemical structure
CAS number33927-09-2
FormulaC15H12I2O4
Molar mass510.06 g/mol
Physical formSolid
HS code38229090
InChIKeyBDXPYXUQAYIUFG-UHFFFAOYSA-N
IUPAC namemethyl 3,5-diiodo-4-(4-methoxyphenoxy)benzoate

About Levothyroxine EP Impurity H (Stage -5)

Levothyroxine EP Impurity H (Stage -5) is supplied by Zemixal as a characterised reference material for Levothyroxine analysis. For your records (Reference Standard), the material is defined by CAS 33927-09-2, formula C15H12I2O4 and molar mass 510.06 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

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and custom quantities are quoted on request. 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 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 H (Stage -5)
Product nameLevothyroxine EP Impurity H (Stage -5)
Catalogue numberZX-005796
CAS number33927-09-2
IUPAC namemethyl 3,5-diiodo-4-(4-methoxyphenoxy)benzoate
Molecular formulaC15H12I2O4
Molar mass510.06 g/mol
Exact mass509.8825
GradeReference Standard
Physical formSolid
XLogP34.6
H-bond donors / acceptors0 / 4
Topological polar surface area44.8 Ų
HS code38229090
InChIKeyBDXPYXUQAYIUFG-UHFFFAOYSA-N
SMILESCOC1=CC=C(C=C1)OC2=C(C=C(C=C2I)C(=O)OC)I
PubChem CID9936119
Synonyms3,5-Diiodo-4(4'-methoxyphenoxy)benzoic acid methyl ester, BTO 956, DIME, Methyl 3,5-diiodo-4-(4'-methoxyphenoxy)benzoate, Oncocidin A 1, Levothyroxine EP Impurity H ( Stage -5), methyl-3,5-diiodo-4-(4'-methoxyphenoxy)benzoate, BTO-956

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

No GHS classification is on file for this item. Handle it as an unknown laboratory chemical and request the SDS with your quotation.

Pack sizes

Pack sizes of Levothyroxine EP Impurity H (Stage -5)
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 H (Stage -5)

Which CAS number identifies Levothyroxine EP Impurity H (Stage -5)?
Levothyroxine EP Impurity H (Stage -5) is registered under CAS 33927-09-2. You may also see it listed as 3,5-Diiodo-4(4'-methoxyphenoxy)benzoic acid methyl ester, BTO 956, DIME. Our catalogue number for this item is ZX-005796.
What are the formula and molar mass of Levothyroxine EP Impurity H (Stage -5)?
For Levothyroxine EP Impurity H (Stage -5), its formula is C15H12I2O4 and its molar mass is 510.06 g/mol. The systematic (IUPAC) name is methyl 3,5-diiodo-4-(4-methoxyphenoxy)benzoate. InChIKey BDXPYXUQAYIUFG-UHFFFAOYSA-N lets you match it in any structure database.
How is Levothyroxine EP Impurity H (Stage -5) used in pharmaceutical QC?
Levothyroxine EP Impurity H (Stage -5) 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 H (Stage -5)?
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 H (Stage -5)?
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 H (Stage -5) to my country?
Yes. Levothyroxine EP Impurity H (Stage -5) ships worldwide by express courier, air cargo or sea freight, quoted on the Incoterm you prefer, with full export documents.

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