Pneumococcal Polysaccharide Powder Type 19A (US Type 57) (ATCC® 252-X™) Type Strain: no / Biosafety Level: 1 General Information Characteristics History Documentation Print Email Share Share this product Facebook Twitter Google+ Isolation Extracted from Streptococcus pneumoniae by Merck, Sharp & Dohme Biosafety Level 1 Biosafety classification is based on U.S. Public Health Service Guidelines, it is the responsibility of the customer to ensure that their facilities comply with biosafety regulations for their own country. Antigenic Properties Type 57 (Danish designation 19A) Product Format frozen 200 mg Preceptrol® no Type Strain no Antigenic Properties Type 57 (Danish designation 19A) Name of Depositor Merck, Sharp & Dohme Isolation Extracted from Streptococcus pneumoniae by Merck, Sharp & Dohme Basic Documentation Product Sheet Certificate of Analysis SDS