Haematoporphyrin dihydrochloride is a fluorescent compound commonly used in medical research and diagnostics.
 
Its CAS number is 106-55-0 and its molecular weight is 678.59 g/mol.
 
As an organic compound, it poses certain risks and requires careful handling in the lab. Its detailed MSDS hazard warnings codes include H302 (harmful if swallowed) and H315 (causes skin irritation). 
 
Its common uses include photodynamic therapy, cancer detection, and fluorescence microscopy.