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Details

Stereochemistry ACHIRAL
Molecular Formula C7H5I2NO3
Molecular Weight 404.9284
Optical Activity NONE
Defined Stereocenters 0 / 0
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of DIODONE ACID

SMILES

OC(=O)CN1C=C(I)C(=O)C(I)=C1

InChI

InChIKey=PVBALTLWZVEAIO-UHFFFAOYSA-N
InChI=1S/C7H5I2NO3/c8-4-1-10(3-6(11)12)2-5(9)7(4)13/h1-2H,3H2,(H,11,12)

HIDE SMILES / InChI

Molecular Formula C7H5I2NO3
Molecular Weight 404.9284
Charge 0
Count
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

Iodopyracet (Diodone) is a radiocontrast agent used in urography before 1950. Renal clearance of iodopyracet is characterized by supply-limited elimination at low plasma concentrations and capacity-limited elimination at high plasma levels. Iodopyracet to be an effective agent for the estimation of renal plasma flow and tubular function has been used extensively in physiological studies. In 1945 was found, that p-aminohippuric acid was in some ways superior to diodone for these estimations in man because the urine and plasma blanks are small and because diodone penetrates human red blood cells whereas p-aminohippuric acid does not.

Approval Year

Targets

Targets

Primary TargetPharmacologyConditionPotency
Doses

Doses

DosePopulationAdverse events​
10 g single, intravenous
Dose: 10 g
Route: intravenous
Route: single
Dose: 10 g
Sources:
unhealthy
Health Status: unhealthy
Sources:
Other AEs: Nausea and vomiting, Urticaria...
Other AEs:
Nausea and vomiting (severe, 2 patients)
Urticaria (8 patients)
Sleepiness (34 patients)
Sources:
AEs

AEs

AESignificanceDosePopulation
Sleepiness 34 patients
10 g single, intravenous
Dose: 10 g
Route: intravenous
Route: single
Dose: 10 g
Sources:
unhealthy
Health Status: unhealthy
Sources:
Urticaria 8 patients
10 g single, intravenous
Dose: 10 g
Route: intravenous
Route: single
Dose: 10 g
Sources:
unhealthy
Health Status: unhealthy
Sources:
Nausea and vomiting severe, 2 patients
10 g single, intravenous
Dose: 10 g
Route: intravenous
Route: single
Dose: 10 g
Sources:
unhealthy
Health Status: unhealthy
Sources:
Sourcing

Sourcing

Vendor/AggregatorIDURL
PubMed

PubMed

TitleDatePubMed
A clinical evaluation of the iodopyracet (diodrast) renogram.
1959-06

Sample Use Guides

3.0 g, administered i.v.
Route of Administration: Intravenous
Substance Class Chemical
Created
by admin
on Mon Mar 31 21:00:13 GMT 2025
Edited
by admin
on Mon Mar 31 21:00:13 GMT 2025
Record UNII
NLX9TZ649P
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
NSC-60718
Preferred Name English
DIODONE ACID
Common Name English
PELVIRINIC ACID
Common Name English
3,5-DIIODO-4-PYRIDONE-N-ACETIC ACID
Systematic Name English
1(4H)-PYRIDINEACETIC ACID, 3,5-DIIODO-4-OXO-
Common Name English
UMBRADILIC ACID
Common Name English
Code System Code Type Description
ECHA (EC/EINECS)
202-932-5
Created by admin on Mon Mar 31 21:00:13 GMT 2025 , Edited by admin on Mon Mar 31 21:00:13 GMT 2025
PRIMARY
CHEBI
141062
Created by admin on Mon Mar 31 21:00:13 GMT 2025 , Edited by admin on Mon Mar 31 21:00:13 GMT 2025
PRIMARY
FDA UNII
NLX9TZ649P
Created by admin on Mon Mar 31 21:00:13 GMT 2025 , Edited by admin on Mon Mar 31 21:00:13 GMT 2025
PRIMARY
CAS
101-29-1
Created by admin on Mon Mar 31 21:00:13 GMT 2025 , Edited by admin on Mon Mar 31 21:00:13 GMT 2025
PRIMARY
PUBCHEM
9304
Created by admin on Mon Mar 31 21:00:13 GMT 2025 , Edited by admin on Mon Mar 31 21:00:13 GMT 2025
PRIMARY
EPA CompTox
DTXSID7043794
Created by admin on Mon Mar 31 21:00:13 GMT 2025 , Edited by admin on Mon Mar 31 21:00:13 GMT 2025
PRIMARY
NSC
60718
Created by admin on Mon Mar 31 21:00:13 GMT 2025 , Edited by admin on Mon Mar 31 21:00:13 GMT 2025
PRIMARY
Related Record Type Details
SALT/SOLVATE -> PARENT