In addition to the natural auxins, a whole range of synthetic auxins are known. The most widely used are -naphthaleneacetic acid (NAA) and 2,4-dichlorophenoxyacetic acid (2,4-D). Used in high doses, auxin stimulates the production of ethylene. Excess ethylene can inhibit elongation growth, cause leaf abscission, and even kill the plant. 2,4-D and 2,4,5-trichlorophenoxyacetic acid (2,4,5-T) have been used as herbicides. Dicots are much more susceptible to auxins than monocots like grass and cereal crops.

 

SYNTHETIC AUXINS

PICLORAM [4-amino-3,5,6-trichloropicolinic acid]

MW 241.46; crystalline; purity > 98% (HPLC)
CAS: 1918-02-1; C6H3Cl3N2O2
PICLORAM
016 2901 1 g
016 2902 5 g
016 2903 25 g

α-NAPHTALENEACETIC ACID (NAA)

MW 186.21; crystalline; purity > 98% (HPLC)
CAS: 86-87-3; C12H10O2
α-NAPHTALENE ACETIC ACID (NAA)
016 2911 5 g
016 2912 25 g
016 2913 100 g

α-NAPHTALENEACETIC ACID POTASSIUM SALT (NAA-K)

MW 224.31; crystalline; purity > 90% (HPLC)
CAS: 15165-79-4; C12H9KO2
α-naphtalene acetic acid POTASSIUM SALT (NAA-K)
016 6291 5 g
016 6292 25 g
016 6293 100 g

β-NAPHTHOXYACETIC ACID (BNOA)

MW 202.21; crystalline; purity > 98% (HPLC)
CAS: 120-23-0; C12H10O3
β-NAPHTOXYACETIC ACID (BNOA)
016 2921 1 g
016 2922 5 g
016 2923 25 g
016 2924 100 g

2,4-DICHLOROPHENOXYACETIC ACID (2,4-D)

MW 221.04; crystalline; purity > 97% (HPLC)
CAS: 94-75-7; C8H6Cl2O3
2,4-DICHLOROPHENOXYACETIC ACID (2,4D)
016 2931 10 g
016 2932 25 g
016 2933 50 g

DICAMBA [2-methoxy-3,6-dichlorobenzoic acid]

MW 221.04; crystalline; purity > 97% (HPLC)
CAS: 1918-00-9; C8H6Cl2O3
DICAMBA
016 2951 50 mg
016 2952 250 mg
016 2953 1 g

4-CHLOROPHENOXYACETIC ACID (4-CPA, CPA)

MW 186.60; crystalline; purity > 97% (HPLC)
CAS: 122-88-3; C8H7ClO3
4-CHLOROPHENOXYACETIC ACID (4-CPA, CPA)
016 2961 10 g
016 2962 25 g
016 2963 100 g

KAKEIMIDE (KKI) (4-(1,3-Dioxoisoindolin-2-yl)-N-(3-isopropoxyfenyl)butanamide)

MW 366.42; crystalline; purity > 98% (HPLC)
CAS: ; C21H22N2O4
KAKEIMIDE (KKI)
016 8181 1 mg
016 8182 2 mg
016 8183 5 mg