hydrindantin


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hydrindantin

[‚hī·drən′dant·ən]
(organic chemistry)
C18H10O6 A compound used as a reagent for the photometric determination of amino acids.
References in periodicals archive ?
Louis, MO, USA), ACE (from rabbit lung), hippuryl-L-histidyl-L-leucine (HHL), hydrindantin, and lithium hydroxide were purchased from Sigma (USA).
Ascorbic acid addition into ninhydrin reagent prevents oxidation of hydrindantin. Values for absorbance of ACC solutions were found in the rage 0.015 to 0.3 mmol/1 at 570 nm after the reaction was highly correlated with ACC concentrations ([R.sup.2] = 0.999) and resulted in linear calibration curves by standard ninhydrin assay.
The ninhydrin reagent was prepared by mixing 18.0 g of ninhydrin and 0.7 g of hydrindantin with a reagent containing (per liter) 767 mL of dimethyl sulfoxide, 225 mL of water, 7.0 g of lithium acetate, and 1 mL of concentrated acetic acid; the reagent was kept at room temperature for 4 h.