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P h a r mTe c h . c o m 24 Pharmaceutical Technology BUYERS' GUIDE 2020 CHEMICALS raw materials, intermediates, & excipients For vendor contact information, see Company Directory section. See listings online at Directory.PharmTech.com POLYMYXIN B SULFATE AIC POLYOXYETHYLENE FATTY ESTERS Croda POLYOXYETHYLENE FATTY ESTERS Gattefossé USA Vantage POLYOXYETHYLENE GLYCOLS BASF Corp Biolink Life Sciences Gattefossé USA Vantage Wako Chemicals USA POLYPEPTIDES Evonik Corp POLYPROPYLENE GLYCOLS Brenntag North America Vantage POLYSORBATES Avantor Performance Materials Croda KIC Chemicals POLYVINYL ALCOHOL BASF Corp Brenntag North America JRS Pharma GmbH & Co KG Penta Mfg Co Vantage POLYVINYL- PYRROLIDONE AIC Ashland BASF Corp Biddle Sawyer Corp Generichem Corp George Uhe Co International Specialty Products JRS Pharma GmbH & Co KG Vantage POTASSIUM Alfa Aesar Thomas Scientific POTASSIUM ACETATE Alfa Aesar Avantor Performance Materials Spectrum Chemical Mfg Thomas Scientific Vantage POTASSIUM ALGINATE Spectrum Chemical Mfg POTASSIUM AMINOBENZOATE Contract Pharmacal Corp Generichem Corp Spectrum Chemical Mfg POTASSIUM BENZOATE Spectrum Chemical Mfg POTASSIUM BICARBONATE Alfa Aesar 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BASF Corp Ceres Chemical Co Spectrum Chemical Mfg PRIMARY AMYL ACETATE Ackley Machine Corp PRIMIDONE Parchem Fine Specialty Chemicals PRIMIDONE Siegfried (USA) PROCAINAMIDE HCL Spectrum Chemical Mfg PROCAINE Spectrum Chemical Mfg Vantage PROCAINE HCL Spectrum Chemical Mfg PROGESTERONE Kingchem LLC Pfizer CentreOne Vantage PROMAZINE HCL ChiroSolve PROPAFENONE HCL Cambrex PROPARGYL BROMIDE Advanced Synthesis PROPIONIC ACID Arkema Brenntag North America PROPOXYPHENE HCL Brenntag North America Siegfried (USA) PROPRANOLOL Aptalis Pharmaceutical Technologies PROPYL GALLATE Brenntag North America Parchem Fine Specialty Chemicals Richman Chemical Vantage PROPYLENE GLYCOL Allan Chemical Corp Brenntag North America KIC Chemicals Thomas Scientific Vantage PROPYLENE GLYCOL ALGINATE Brenntag North America FMC Corp TIC Gums PROPYLENE GLYCOL FATTY ACID ESTERS Croda PROPYLENE GLYCOL MONOSTEARATE Brenntag North America Gattefossé USA TIC Gums Vantage PROPYLPARABEN Vantage PROSTAGLANDINS Pfizer 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