Tyropanoate Sodium
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MedKoo CAT#: 328204

CAS#: 7246-21-1

Description: Tyropanoate sodium, also known as sodium tyropanoate, is a radiocontrast agent used in cholecystography (X-ray diagnosis of gallstones). The molecule contains three heavy iodine atoms which obstruct X-rays to produce a visible image. After injection, it is rapidly excreted into the bile.


Chemical Structure

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Tyropanoate Sodium
CAS# 7246-21-1

Theoretical Analysis

MedKoo Cat#: 328204
Name: Tyropanoate Sodium
CAS#: 7246-21-1
Chemical Formula: C15H17I3NNaO3
Exact Mass: 640.8421
Molecular Weight: 663.0082
Elemental Analysis: C, 27.17; H, 2.58; I, 57.42; N, 2.11; Na, 3.47; O, 7.24

Price and Availability

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50.0mg USD 450.0 2 weeks
100.0mg USD 850.0 2 weeks
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Related CAS #: 7246-21-1 (sodium)   27293-82-9 (acid)  

Synonym: Tyropanic acid, sodium tyropanoate, tyropanoate

IUPAC/Chemical Name: sodium 2-(3-butyramido-2,4,6-triiodobenzyl)butanoate

InChi Key: KTVKGXZZBQCBGD-UHFFFAOYSA-M

InChi Code: InChI=1S/C15H18I3NO3.Na/c1-3-5-12(20)19-14-11(17)7-10(16)9(13(14)18)6-8(4-2)15(21)22;/h7-8H,3-6H2,1-2H3,(H,19,20)(H,21,22);/q;+1/p-1

SMILES Code: O=C(O)C(CC)CC1=C(I)C=C(I)C(NC(CCC)=O)=C1I

Appearance: Solid powder

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO

Shelf Life: >2 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.9001

Certificate of Analysis:

Safety Data Sheet (SDS):

Preparing Stock Solutions

The following data is based on the product molecular weight 663.0082 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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1: Cooke WJ, Cooke LM. Biliary and urinary excretion of tyropanoic acid and its Metabolites in the dog. Invest Radiol. 1983 May-Jun;18(3):285-92. PubMed PMID: 6618819.

2: Suzuki H, Kadena N, Takeuchi K, Nakagawa S. Effects of three-day oral cholecystography on serum iodothyronines and TSH concentrations: comparison of the effects among some cholecystographic agents and the effects of iopanoic acid on the pituitary-thyroid axis. Acta Endocrinol (Copenh). 1979 Nov;92(3):477-88. PubMed PMID: 517049.



Additional Information

Related CAS#

Tyropanic Acid
27293-82-9

Sodium tyropanoate
7246-21-1