T1 Captafol Health and Safety Guide - Health and Safety Guide 49 A1 United Nations Environment Programme, K1 health K1 health hazard K1 chemical SN 92 4 151049 8 YR 1990 FD 1990 LK https://wedocs.unep.org/handle/20.500.11822/29587 UL https://wedocs.unep.org/handle/20.500.11822/29587 NO Technical captafol is a light tan powder with a characteristic odour. It is stable at room temperature in the dry state, but is readily bydrolysed, especially in an alkaline environment. The melting point of the pure compound is 162 °C; a range of 156-161 °C has been recorded for the technical product. The vapour pressure at room temperature is negligible. DS UN Environment Document Repository RD Sep 21, 2026