Food Additive, Raw Powder, Nootropic manufacturer / supplier in China, offering Factory Supply Pure 99% Hmf 5-Hmf 5-Hydroxymethylfurfural Powder CAS 67-47-0, Factory Supply Pharmaceutical Grade Pure 99% Methylthioninium Chloride USP Methylene Blue Powder CAS 61-73-4, Dotinurad Powder CAS 1285572-51-1 Chemical Intermediate and so on.