Family · Pharmaceutical analytical standards

Nitroprussic Acid

Sodium nitroprusside, the red sodium salt of nitroprussic acid and its medical form, is a vasodilator that releases nitric oxide: used in humans since 1928 and approved in the United States in 1974, it rapidly lowers blood pressure in hypertensive crises. This family brings together other impurities.

Did you know?Outside medicine it is a classic reagent: it detects ketones in urine (Rothera's test, the basis of many test strips) and is used to calibrate Mössbauer spectrometers.