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API Process Intermediates & Related Compounds

3,5-Diiodothyropropionic Acid (Stage-2)

Reference StandardIn stock

3,5-Diiodothyropropionic Acid (Stage-2) (CAS 81650-04-6) supplier Zemixal. Request a quote with price, lead time and documents.

Pack sizes
3,5-Diiodothyropropionic Acid (Stage-2) chemical structure
CAS number81650-04-6
FormulaC11H12N2O7
Molar mass284.22 g/mol
Physical formSolid
InChIKeyYLIMSIWQDHNBCZ-UHFFFAOYSA-N
IUPAC nameethyl 3-(4-hydroxy-3,5-dinitrophenyl)propanoate

About 3,5-Diiodothyropropionic Acid (Stage-2)

3,5-Diiodothyropropionic Acid (Stage-2) sits in our API Process Intermediates & Related Compounds section and ships worldwide from stock or short lead time. For your records (Reference Standard), the material is defined by CAS 81650-04-6, formula C11H12N2O7 and molar mass 284.22 g/mol. It is handled as a solid.

Use cases we see most often

  • API route development
  • Impurity fate & purge studies
  • Analytical method development

Storage and safety notes

It carries the GHS signal word Danger (H301), so wear gloves and eye protection and work with good ventilation.

Available as 10 mg, 25 mg, 50 mg, 100 mg and 250 mg. Larger or split packs can be arranged. Each lot travels with a batch certificate of analysis and a 16-section SDS. 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

  • API route development
  • Impurity fate & purge studies
  • Analytical method development

Applications

Specifications and identifiers

Specifications of 3,5-Diiodothyropropionic Acid (Stage-2)
Product name3,5-Diiodothyropropionic Acid (Stage-2)
Catalogue numberZX-012038
CAS number81650-04-6
IUPAC nameethyl 3-(4-hydroxy-3,5-dinitrophenyl)propanoate
Molecular formulaC11H12N2O7
Molar mass284.22 g/mol
Exact mass284.0645
GradeReference Standard
Physical formSolid
XLogP32.2
H-bond donors / acceptors1 / 7
Topological polar surface area138 Ų
InChIKeyYLIMSIWQDHNBCZ-UHFFFAOYSA-N
SMILESCCOC(=O)CCC1=CC(=C(C(=C1)[N+](=O)[O-])O)[N+](=O)[O-]
PubChem CID2774197
SynonymsEthyl 3,5-dinitro-4-hydroxyhydrocinnamate

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

Safety and GHS hazards

GHS06 Acute toxicity
Acute toxicity

Signal word Danger

  • H301Toxic if swallowed

Precautionary statements P264, P270, P301 + P316, P321, P330, 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 3,5-Diiodothyropropionic Acid (Stage-2)
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request
250 mgQuoted on request
500 mgQuoted on request
1 gQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about 3,5-Diiodothyropropionic Acid (Stage-2)

Which CAS number identifies 3,5-Diiodothyropropionic Acid (Stage-2)?
3,5-Diiodothyropropionic Acid (Stage-2) is registered under CAS 81650-04-6. You may also see it listed as Ethyl 3,5-dinitro-4-hydroxyhydrocinnamate. Our catalogue number for this item is ZX-012038.
What are the formula and molar mass of 3,5-Diiodothyropropionic Acid (Stage-2)?
For 3,5-Diiodothyropropionic Acid (Stage-2), its formula is C11H12N2O7 and its molar mass is 284.22 g/mol. The systematic (IUPAC) name is ethyl 3-(4-hydroxy-3,5-dinitrophenyl)propanoate. InChIKey YLIMSIWQDHNBCZ-UHFFFAOYSA-N lets you match it in any structure database.
How is 3,5-Diiodothyropropionic Acid (Stage-2) used in pharmaceutical QC?
3,5-Diiodothyropropionic Acid (Stage-2) 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 3,5-Diiodothyropropionic Acid (Stage-2)?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg, 250 mg, 500 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with 3,5-Diiodothyropropionic Acid (Stage-2)?
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 3,5-Diiodothyropropionic Acid (Stage-2) to my country?
Yes. Because 3,5-Diiodothyropropionic Acid (Stage-2) 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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