Vihita Chem Pvt. Ltd. Manufactures Guanidine Thiocynate. Vihita Chem Pvt. Ltd. Is the manufacturer and exporter of drugs and fragrance intermediates and speciality chemicals. The Guanidine Thiocynate features CAS NO.: 593-84-0, Molecular Formulae: H2NC [=NH] NH2 HSCN, Mol. Wt: 118.16 and Assay: 99 percent. It appears in white crystalline powder form. This Guanidine Thiocynate is available in 25 kg HDPE drums.