7164-43-4 UM0F8VQR7M 5-Aminoorotic acid 5-Amino-2,6-dioxo-1,2,3,4-tetrahydropyrimidine-4-carboxylic acid Orotic acid, 5-amino- Orotic acid, 5-amino- (VAN) (8CI) 4-Pyrimidinecarboxylic acid, 5-amino-1,2,3,6-tetrahydro-2,6-dioxo- EINECS 230-514-2 NSC 43249 Orothic acid, 5-amino- UNII-UM0F8VQR7M CAS 7164-43-4

Purity 97%+In StockPharmaceutical Standards
CAS No.7164-43-4
Molecular FormulaC5H5N3O4
Molecular Weight171.11 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

7164-43-4 UM0F8VQR7M 5-Aminoorotic acid 5-Amino-2,6-dioxo-1,2,3,4-tetrahydropyrimidine-4-carboxylic acid Orotic acid, 5-amino- Orotic acid, 5-amino- (VAN) (8CI) 4-Pyrimidinecarboxylic acid, 5-amino-1,2,3,6-tetrahydro-2,6-dioxo- EINECS 230-514-2 NSC 43249 Orothic acid, 5-amino- UNII-UM0F8VQR7M CAS 7164-43-4 chemical structure

Description

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

7164-43-4 UM0F8VQR7M 5-Aminoorotic acid 5-Amino-2,6-dioxo-1,2,3,4-tetrahydropyrimidine-4-carboxylic acid Orotic acid, 5-amino- Orotic acid, 5-amino- (VAN) (8CI) 4-Pyrimidinecarboxylic acid, 5-amino-1,2,3,6-tetrahydro-2,6-dioxo- EINECS 230-514-2 NSC 43249 Orothic acid, 5-amino- UNII-UM0F8VQR7M (CAS 7164-43-4), molecular formula C5H5N3O4 and molecular weight 171.11 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C5H5N3O4, 7164-43-4 UM0F8VQR7M 5-Aminoorotic acid 5-Amino-2,6-dioxo-1,2,3,4-tetrahydropyrimidine-4-carboxylic acid Orotic acid, 5-amino- Orotic acid, 5-amino- (VAN) (8CI) 4-Pyrimidinecarboxylic acid, 5-amino-1,2,3,6-tetrahydro-2,6-dioxo- EINECS 230-514-2 NSC 43249 Orothic acid, 5-amino- UNII-UM0F8VQR7M contains a carbohydrate-derived structure, an amide group; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 171.11 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

Physical & Chemical Properties

Molecular FormulaC5H5N3O4
Molecular Weight171.11 g/mol
AppearanceOff-white to pale yellow crystalline powder. (faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1959
Nitrogen Atoms3

Recommended Standards

Why CATO?