Methyl orange ethanol TS, Validity: 24 months

Methyl orange/acetone TS, Validity: 6 months

Methyl red/ethanol TS, Validity: 12 months

Methyl red/methylthioninium chloride TS, Validity: 12 months

Methylamine hydrochloride (20 g/L) TS, Validity: 12 months

Methylthioninium chloride (0.2 g/L) TS, Validity: 12 months

Methylthioninium chloride (1 g/L) TS, Validity: 12 months

Monoethanolamine (0.1mol/l) VS, Validity: 12 months

Mordant Black 11 indicator mixture R, Validity: 24 months

N-(1-Naphthyl)ethylenediamine hydrochloride (1 g/L) TS, Validity: 12 months