· Its name is Zinc sulfide (ZnS), copper and leaddoped. Chemsrc provides CAS#: MSDS, density, melting point, boiling point, structure, etc. Its name is Zinc sulfide (ZnS), copper and leaddoped. CAS Number Search. Sign In; Join Free; VIP; Home; My Chemsrc Account Information; My Buying Leads; My Selling Leads ; Post Buying Lead; .