penicillamine, d-penicillamine c5h11no2s molecule. it is chelating agent, an antirheumatic and allergen drug. structural chemical

agent antirheumatic arthritis atom atomic blue c5h11no2s carbon chelating chelation chelator chemical chemistry compound cysteine cystinuria dark drawing drug erythematosus flat formula heavy hydrogen icon illustration immunosuppression kidney lupus metal model molecular molecule nitrogen organic oxygen penicillamin penicillamine rheuma rheumatoid scleroderma stone structural structure sulfur toxic urolithiasis vector white