Our company is the biggest manufacturer and exporter of pharma raw materials in China. Niacin---cas# 59-67-6 Niacinamide---cas# 98-92-0 Inositol hexanicotinate---cas# 6556-11-2 Fasudil hcl---cas# 105628-07-7 Terazosin hcl---cas# 70024-40-7 Amifostine---cas# 112901-68-5 Strontium ranelate---cas# 135459-87-9 Cisatracurium besylate---cas# 96946-42-8 R-Tetrahydropapaverine N-acetyl-L-leucinate---cas# 141109-12-8 R-tetrahydropapaverine hydrochloride---cas# 54417-53-7 with GMP,KOSHER,HALAL,ISO certificates.