Sodium borohydride is a kind of inorganic substance, chemical formula is NaBH4, white to gray white fine crystalline powder or block, hygroscopic strong, its alkaline solution is brownish yellow, is one of the most commonly used reductants. Soluble in water, liquid ammonia, amines. Soluble in meth

Furfural, also known as 2-furfuraldehyde, is the same substance as glycoaldehydes. Its scientific name is α-furaldehyde, which is a derivative of hydrogen atom substituted by aldehyde group on furan 2 site. It is originally made from rice bran coheated with dilute acid, so it is called furfural.