Cholbrine (DRC 1201), a diagnostic aid, is an orally bioactive cholecystography agent.

Physicochemical Properties

Molecular Formula	C12H13I3N2O3
Molecular Weight	613.96
Exact Mass	613.806
CAS #	16034-77-8
PubChem CID	27648
Appearance	WHITE TO LIGHT CREAM-COLORED POWDER
Density	2.416g/cm3
Boiling Point	658.2ºC at 760 mmHg
Melting Point	224-225ºC
Flash Point	351.9ºC
Vapour Pressure	3.21E-18mmHg at 25°C
Index of Refraction	1.75
LogP	3.737
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	4
Heavy Atom Count	20
Complexity	383
Defined Atom Stereocenter Count	0
SMILES	NC1=C(I)C=C(I)C(N(CC(C)C(O)=O)C(=O)C)=C1I
InChi Key	GSVQIUGOUKJHRC-UHFFFAOYSA-N
InChi Code	InChI=1S/C12H13I3N2O3/c1-5(12(19)20)4-17(6(2)18)11-8(14)3-7(13)10(16)9(11)15/h3,5H,4,16H2,1-2H3,(H,19,20)
Chemical Name	3-(N-acetyl-3-amino-2,4,6-triiodoanilino)-2-methylpropanoic acid
HS Tariff Code	2934.99.9001
Storage	Powder-20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month
Shipping Condition	Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

Biological Activity

ln Vivo	Rats' LD50 for cocaine is 0.7 g/kg (iv) and 7 g/kg (oral) [2].
ADME/Pharmacokinetics	Absorption, Distribution and Excretion ...RAPIDLY ABSORBED FOLLOWING ORAL ADMIN, CONJUGATED WITH GLUCURONIC ACID IN LIVER, SECRETED INTO BILE AS RADIOPAQUE GLUCURONIDE, & CONCN IN THE FUNCTIONING GALL BLADDER. Metabolism / Metabolites ...CONJUGATED WITH GLUCURONIC ACID IN LIVER...
References	[1]. Comparative study of iocetamic acid and calcium ipodate in the visualisation of the gallbladder and common bile duct. Clin Radiol. 1978 Sep;29(5):535-40. [2]. Toxicologic studies of iocetamic acid in rats and dogs. Toxicol Appl Pharmacol. 1969 Mar;14(2):242-8.
Additional Infomation	3-(N-acetyl-3-amino-2,4,6-triiodoanilino)-2-methylpropanoic acid is an aromatic amide. Iocetamic acid is a diagnostic aid (radiopaque medium) Therapeutic Uses Contrast Media AN ORAL CHOLECYSTOGRAPHIC AGENT INDICATED FOR RADIOGRAPHIC VISUALIZATION OF GALL BLADDER. ... CONTRACTION OF GALL BLADDER ALSO MAY PROVIDE VISUALIZATION OF BILIARY DUCTS. TYROPANOATE 3 G, IOCETAMIC ACID 4.5 G, IOPANOIC ACID 3 G & IOCETAMIC ACID 3 G, WERE EVALUATED IN 800 PT. IOCETAMIC ACID IS AS RELIABLE & EFFECTIVE AS TYROPANOATE OR IOPANOIC ACID IN CHOLECYSTOGRAPHY. 3 G DOSE PRODUCES CHOLECYSTOGRAMS AS SATISFACTORY AS 4.5 G WITH LOWER INCIDENCE OF CRAMPS. Drug Warnings IT IS CONTRAINDICATED IN PT WITH ACUTE NEPHRITIS AND UREMIA, SINCE IT IS ELIMINATED BY THE KIDNEYS. IT SHOULD NOT BE ADMIN WHEN DISORDERS OF THE GI TRACT EXIST WHICH PREVENT ABSORPTION OF THE MEDIUM.

Solubility Data

Solubility (In Vitro)

May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples

Solubility (In Vivo)

Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples. Injection Formulations (e.g. IP/IV/IM/SC) Injection Formulation 1: DMSO : Tween 80： Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution → 50 μL Tween 80 → 850 μL Saline) *Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution. Injection Formulation 2: DMSO : PEG300 ：Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO → 400 μLPEG300 → 50 μL Tween 80 → 450 μL Saline) Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO → 900 μL Corn oil) Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals). Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO → 900 μL (20% SBE-β-CD in saline)] *Preparation of 20% SBE-β-CD in Saline (4°C，1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution. Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin → 500 μL Saline) Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO → 100 μLPEG300 → 200 μL castor oil → 650 μL Saline) Injection Formulation 7: Ethanol : Cremophor : Saline = 10： 10 : 80 (i.e. 100 μL Ethanol → 100 μL Cremophor → 800 μL Saline) Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH → 900 μL Corn oil) Injection Formulation 10: EtOH : PEG300：Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH → 400 μLPEG300 → 50 μL Tween 80 → 450 μL Saline) Oral Formulations Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium) Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals). Oral Formulation 3: Dissolved in PEG400 Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose Oral Formulation 6: Mixing with food powders Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.  (Please use freshly prepared in vivo formulations for optimal results.)

Preparing Stock Solutions		1 mg	5 mg	10 mg
	1 mM	1.6288 mL	8.1439 mL	16.2877 mL
	5 mM	0.3258 mL	1.6288 mL	3.2575 mL
	10 mM	0.1629 mL	0.8144 mL	1.6288 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.