(R)-Trihexyphenidy,(S)-1,2-Butanediol, (R)-1,2-Butanediol--Shanghai Leader Chemical Co.,Ltd.

Drug substances
Thiosol	Anetholi Trithionum	Acitretin
Etretinate	Phentolamine Mesylas	ß-carotene
oxophenamidum	Molsidomine	Terazosin Hydrochloride
Trihexyphenidyl	2H-Pyran-4-carboxylic acid tetrahydro methyl ester	2H-Pyran-4-carboxylic acid tetrahydro ethyl ester
Tetrahydro-4H-thiopyran-4-one	1,1,3,3-Tetramethoxycyclobutane
Intermediates
Tetrahydro-4H-pyran-4-One	5-Formylsalicylic acid	2-Nitro-5-Hydroxybenzaldehyde
Propiolic acid ethyl ester	4-Aminomonpholine	2,3,4-Trihydroxybenzaldehyde
Tetrahydro-2H-pyran-4-ol
New products
(R)-Trihexyphenidy	(S)-1,2-Butanediol	(R)-1,2-butanediol.