2,5-DIAMINO-4,6-DIHYDROXY PYRIMIDINE
2,5-DIAMINOBENZENESULFONIC ACID
99.8% MIN.
2,5-DIMETHYL-4-CHLOROACETANILINE
2,5-DIMETHOXY-4-ETHYLAMPHETAMINE
2,5-DIMETHOXY-4-N-PROPYLTHIOPHENETHYLAMINE
GALLIC ACID
HYDROQUINONE
2,5-DIMETHOXYPHENYLBORONIC ACID
2-BROMO-1,4-DIMETHYLBENZENE
2,6-DIAMINO TOLUENE-4-SULFONIC ACID