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HomeProduct name listButedronic acid

Butedronic acid

  • CAS NO.:51395-42-7
  • Empirical Formula: C5H10O10P2
  • Molecular Weight: 292.07
  • MDL number: MFCD09837954
  • EINECS: 403-070-4
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2023-05-04 17:34:39
Butedronic acid Structural

What is Butedronic acid?

Originator

Butedronic acid,Bayer A.G.

Definition

ChEBI: Butedronic acid is a 1,1-bis(phosphonic acid).

Manufacturing Process

0.5 mole of methylene diphosphonic acid tetraethyl ester is heated for 6 h to 110°C with 0.5 mole of maleic acid diethyl ester in the presence of 25 ml of a saturated sodium ethylate solution. The sodium ethylate is then neutralized with acetic acid and the reaction mixture is quickly distilled invacuo in order to avoid decomposition. The crude distillate is redistillated, the main fraction accumulating in the range from 190-213°C at a pressure of 0.05 Torr, yield 50%.
The ester is hydrolyzed by boiling with concentrated hydrochloric acid. 1,1- Diphosphonopropane-2,3-dicarboxylic acid crystallizes out after purification with active carbon and concentration of the hydrolysis product, yield 100%.

Therapeutic Function

Diagnostic aid

Properties of Butedronic acid

Melting point: 149.5 °C
Boiling point: 701.4±70.0 °C(Predicted)
Density  2.095±0.06 g/cm3(Predicted)
pka 0.38±0.10(Predicted)

Safety information for Butedronic acid

Computed Descriptors for Butedronic acid

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