supply of 1) formaldehyde solution 40% - 450 ml bottle & 2) formaldehyde (bottle of 5litres) 2.5l/bottle (histopathology grade and analytical grade)1) formaldehyde solution 40% - 450 ml bottle & 2) formaldehyde (bottle of 5litres) 2.5l/bottle (histopathology grade and analytical grade),srphc323035-formaldehyde (bottle of 5litres) 2.5l/bottle -should be histopathology grade and analytical grade.cas number should be 50-00-0 and the manufacturer should submit certificate of analysis for every lot. unit:bot the item may be supplied with brand required: qualigen/himedia/fisher scientific or similar ] , srphc272550-formaldehyde solution 40% - 450 ml bottle unit:bot the item may be supplied with brand required: q ualigen/himedia/fisher scientific or similar ] acms/drug store/mas, sr tamil nadu 25.00 numbers