<Tr> <Td_colspan="2"> N verify (what is?) </Td> </Tr> <Tr> <Td_colspan="2"> Infobox references </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> </Tr> <P> Sudan IV (C H N O) is a lysochrome (fat - soluble dye) diazo dye used for the staining of lipids, triglycerides and lipoproteins on frozen paraffin sections . It has the appearance of reddish brown crystals with melting point 199 ° C and maximum absorption at 520 (357) nm . </P>

Can sudan iv indicator help determine if the fat present is healthy