Etilen: $C_2H_4$

Axetilen: $C_2H_2$

Vinyl axetilen: $CH\equiv C-CH=CH_2$

Toluen: $C_6H_5-CH_3$

Stiren: $C_6H_5-CH=CH_2$

Cumen: $C_6H_5-CH(CH_3)-CH_3$ 

Axit fomic: $HCOOH$

Axit axetic: $CH_3COOH$

Axit propionic: $CH_3-CH_2-COOH$

Axit oxalic: $HOOC-COOH$

Axit acrylic: $CH_2=CH-COOH$

Axit lactic: $CH_3-CH(OH)-COOH$

Etilen glicol: $CH_2OH-CH_2OH$

Glixerol: $CH_2OH-CHOH-CH_2OH$ 

Isopren: $CH_2=C(CH_3)-CH=CH_2$

Glyxin: $NH_2-CH_2-COOH$

Alanin: $CH_3-CH(NH_2)-COOH$

-Các chất hay gặp:

Khí metan: \(C{H_4}\)

Khí etilen: \({C_2}{H_4}\)

Khí axetilen: \({C_2}{H_2}\)

Benzen: \({C_6}{H_6}\)

Ancol etylic \({C_2}{H_5}OH\)

Axit axetic: \(C{H_3}COOH\)

Đường glucozo: \({C_6}{H_{12}}{O_6}\)

Đường saccarozo: \({C_{12}}{H_{22}}{O_{11}}\)

Tinh bột: \({({C_6}{H_{10}}{O_5})_n}\)