Carrion crawler mucus
contact (venom) - 200 gp
This poison must be harvested from a dead or incapacitated carrion crawler.
A creature subjected to this poison must succeed on a DC 13 Constitution saving throw or be poisoned for 1 minute. The poisoned creature is paralyzed. The creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.
Dungeon Master´s Guide