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11709

Supelco

Barbituric acid

for spectrophotometric det. of cyanide, ≥99.5%

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Synonym(s):
2,4,6-Trihydroxypyrimidine, Malonylurea
Empirical Formula (Hill Notation):
C4H4N2O3
CAS Number:
Molecular Weight:
128.09
Beilstein/REAXYS Number:
120502
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

Quality Level

assay

≥99.5% (HPLC)
≥99.5%

form

solid

quality

for spectrophotometric det. of cyanide

technique(s)

UV/Vis spectroscopy: suitable

ign. residue

≤0.05%

mp

248-252 °C (dec.) (lit.)

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤500 mg/kg

cation traces

Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
Mg: ≤10 mg/kg
Mn: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

SMILES string

O=C1CC(=O)NC(=O)N1

InChI

1S/C4H4N2O3/c7-2-1-3(8)6-4(9)5-2/h1H2,(H2,5,6,7,8,9)

InChI key

HNYOPLTXPVRDBG-UHFFFAOYSA-N

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General description

Barbituric acid is also known as malonurea or 6-hydroxyuracil, it is an odourless powder and is soluble in water. It has a very high pharmacological activity and can be used to synthesize addition derivatives of it, to be used in novel drug discovery. It basically acts on the central nervous system (CNS) depressants, thereby possessing a wide range from mild sedation to total anaesthesia.

Application

Barbituric acid with aromatic aldehydes was used in an experimental study, meant to demonstrate the increased efficiency of Knoevenagel condensation reaction for barbituric acid and various aromatic aldehydes on basic alumina, in the absence of organic solvents under microwave irradiation. It may also be used in electrochemical oxidation of iodine, using cyclic voltammetry and controlled-potential coulometry.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

302.0 °F - closed cup

flash_point_c

150.00 °C - closed cup

ppe

Eyeshields, Gloves, type N95 (US)


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