13-03364. sym-Diphenylpyrophosphorodiamidic Acid [Archived]

Nomenclature

CAS number: 541-04-8
N,N′-Diphenyl-P,P′-diamidodiphosphoric acid.
C12H14N2O5P2; mol wt 328.20.
C 43.91%, H 4.30%, N 8.54%, O 24.37%, P 18.87%.

Description and references

Prepd from O-benzylphenylphosphoroamidic acid: Boger, Friedman, J. Am. Chem. Soc. 80, 2583 (1958).

Chemical structure

Derivative

Dicyclohexylammonium salt.
C24H40N4O5P2; mol wt 526.55.
C 54.74%, H 7.66%, N 10.64%, O 15.19%, P 11.76%.

Properties

mp 223-224°. Sol in water. No spontaneous hydrolysis at pH 4.0 to pH 11.5 after two hours at 37°.

Derivative

Dipotassium salt.
C12H12K2N2O5P2; mol wt 404.38.
C 35.64%, H 2.99%, K 19.34%, N 6.93%, O 19.78%, P 15.32%.

Properties

Crystals.

Use

Colorimetric estimation of enzymes.

Status

This monograph has been retired and is no longer subject to revision or update.