Sulfamic acid is the simplest of the sulfamic acids consisting of a single sulfur atom covalently bound by single bonds to hydroxy and amino groups and by double bonds to two oxygen atoms.
Sulphuric acid is often found in domestic cleaning products due to its corrosive nature. Being highly corrosive makes sulphuric acid ideal for cleaning surfaces which can get particularly dirty, such as toilets. It's also an ideal drain unblocker because it can break down organic material such as hair and grease.