Patent · US Expired

N-(p-Sulfophenyl) cinnamamide as sunscreen agent

US4455295A · kind A · utility

5Cited by

0References

7Claims

0Family size

Assignee

Haarmann & Reimer Corporation · DE

Inventors

Rudolf Hopp · Holzminden, DE
Horst Finkelmeier · Holzminden, DE
Roland Langner · Holzminden, DE

Key dates

Filing date	May 6, 1983
Grant date	Jun 19, 1984
Priority date	—
Expiry date	May 6, 2003

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K8/466
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

N-(p-sulfophenyl)-cinnamamide, which is optionally present in the form of a salt, can be prepared by the reaction of cinnamoyl chloride with sulphanilic acid in the presence of a tertiary amine. The new compound can be used in light-protection agents.

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