CAS 17528-72-2 Tetrahydrobiopterin

Qualified API CAS 17528-72-2 Tetrahydrobiopterin.2HCl(CAS 69056-38-8),IV phenylketonuria (PKU)
1.We are the qualified supplier of a Japan enterprise. 
2.Pure white powder, GC>99.6%, the top quality. Stable production, the GMP workshop has passed the approval of EDQM & FDA
3.Clear price: 
Pharma. grade:1g, $600, 10g,$430/g. (The analysis items meet the standard of EDQM & FDA)
GMP grade: By negotiation.(The special market it will need our client's approval)