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11709 Sigma-Aldrich

Barbituric acid

for spectrophotometric det. of cyanide, ≥99.5%

Synonym: 2,4,6-Trihydroxypyrimidine, Malonylurea

  • CAS Number 67-52-7

  • Empirical Formula (Hill Notation) C4H4N2O3

  • Molecular Weight 128.09

  •  Beilstein Registry Number 120502

  •  EC Number 200-658-0

  •  MDL number MFCD00006666

  •  PubChem Substance ID 24847314

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Properties

InChI Key   HNYOPLTXPVRDBG-UHFFFAOYSA-N
assay   ≥99.5% (HPLC)
  ≥99.5%
quality   for spectrophotometric det. of cyanide
drug control   regulated under CDSA - not available from Sigma-Aldrich Canada
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

Description

Other Notes

Same product — same quality — now Sigma-Aldrich brand

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.

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.

Price and Availability

Suggested Laboratory Gloves


Laboratory GlovesThis substance has been tested against several types of hand protection for CE compliance. Click below to find the recommended gloves for handling this product.



Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
1
RTECS 
CP8000000
Flash Point(F) 
302 °F
Flash Point(C) 
150 °C

Documents

Certificate of Analysis

Protocols & Articles
Peer-Reviewed Papers
15

References

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