Patent · US Expired

Method for determining the presence of endohydrolase in a liquid and composition therefor

US4563421A · kind A · utility

4Cited by

6References

6Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Klaus Habenstein · Wetter, DE
Helmut Kohl · Marburg, DE

Key dates

Filing date	Nov 25, 1983
Grant date	Jan 7, 1986
Priority date	—
Expiry date	Nov 25, 2003

Classification

Technology area (CPC G)Physics
CPC primaryG01N31/221
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

What are disclosed are polysaccharide derivatives of the formula ##STR1## in which n denotes a number from 100 to 12,500 and R denotes hydrogen, a carboxyalkyl or hydroxyalkyl group with 1 to 5 carbon atoms in the alkyl radical or a detectable molecular group, any combination of the (3n+2) R radicals being possible, but at least one R being a carboxyalkyl or hydroxyalkyl group and at least one R being a detectable molecular group, and a process for their preparation and their use for the determination of endohydrolases, in indicator paper and for the detection of metabolites in biological liquids, are described.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.