Levothyroxine N-Formyl Impurity

Name: Levothyroxine N-Formyl Impurity
Brand: Zemixal
SKU: ZX-004891

Reference StandardIn stock

Buy Levothyroxine N-Formyl Impurity (CAS 671235-41-9) from Zemixal: C16H11I4NO5, COA and SDS with every lot, worldwide shipping.

Pack sizes

Levothyroxine N-Formyl Impurity chemical structure

CAS number671235-41-9

FormulaC₁₆H₁₁I₄NO₅

Molar mass804.88 g/mol

Physical formSolid

HS code38229090

InChIKeyDNRNTTVIRGKKSQ-ZDUSSCGKSA-N

IUPAC name(2S)-2-formamido-3-[4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]propanoic acid

About Levothyroxine N-Formyl Impurity

Levothyroxine N-Formyl Impurity belongs to the Levothyroxine reference-standard family in the Zemixal catalogue. For your records (Reference Standard), the material is defined by CAS 671235-41-9, formula C16H11I4NO5 and molar mass 804.88 g/mol. It is handled as a solid.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

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. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Levothyroxine

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

Levothyroxine standards

Typical uses

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Applications

Pharmaceutical Manufacturing and QC Research Labs and Universities

Specifications and identifiers

Specifications of Levothyroxine N-Formyl Impurity
Product name	Levothyroxine N-Formyl Impurity
Catalogue number	ZX-004891
CAS number	671235-41-9
IUPAC name	(2S)-2-formamido-3-[4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]propanoic acid
Molecular formula	C₁₆H₁₁I₄NO₅
Molar mass	804.88 g/mol
Exact mass	804.6816
Grade	Reference Standard
Physical form	Solid
XLogP3	4.9
H-bond donors / acceptors	3 / 5
Topological polar surface area	95.9 Å²
HS code	38229090
InChIKey	DNRNTTVIRGKKSQ-ZDUSSCGKSA-N
SMILES	C1=C(C=C(C(=C1I)OC2=CC(=C(C(=C2)I)O)I)I)C[C@@H](C(=O)O)NC=O
PubChem CID	71316964
Synonyms	N-Formyl-O-(4-hydroxy-3,5-diiodophenyl)-3,5-diiodo-L-tyrosine, N-Formyl-T4 (USP), N-Formyl Thyroxine, N-Formyl-T4, Thyroxine, N-formyl-, L-Tyrosine, N-formyl-O-(4-hydroxy-3,5-diiodophenyl)-3,5-diiodo-, Levothyroxine sodium impurity, N-formyl-t4-(USP), (S)-2-Formamido-3-(4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl)propanoic acid

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 N-Formyl Impurity
10 mg	Quoted on request
25 mg	Quoted on request
50 mg	Quoted on request
100 mg	Quoted 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 N-Formyl Impurity

Which CAS number identifies Levothyroxine N-Formyl Impurity?

Levothyroxine N-Formyl Impurity is registered under CAS 671235-41-9. You may also see it listed as N-Formyl-O-(4-hydroxy-3,5-diiodophenyl)-3,5-diiodo-L-tyrosine, N-Formyl-T4 (USP), N-Formyl Thyroxine. Our catalogue number for this item is ZX-004891.

What are the formula and molar mass of Levothyroxine N-Formyl Impurity?

For Levothyroxine N-Formyl Impurity, its formula is C16H11I4NO5 and its molar mass is 804.88 g/mol. The systematic (IUPAC) name is (2S)-2-formamido-3-[4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]propanoic acid. InChIKey DNRNTTVIRGKKSQ-ZDUSSCGKSA-N lets you match it in any structure database.

How is Levothyroxine N-Formyl Impurity used in pharmaceutical QC?

Levothyroxine N-Formyl Impurity 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 N-Formyl Impurity?

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 N-Formyl Impurity?

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 N-Formyl Impurity to my country?

Yes. Levothyroxine N-Formyl Impurity ships worldwide by express courier, air cargo or sea freight, quoted on the Incoterm you prefer, with full export documents.

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