(Z)-Hydroxymethyldiazene potassium salt 19416-93-4 202325-60-8 3058-37-5 94610-18-1 98114-59-1 Diazene, hydroxymethyl-, potassium salt, (Z)- Methanediazohydroxide, potassium salt, (Z)- Potassium (Z)-methanediazotate