Qingdao Weixian Pharmaceutical & Chemical Co., Ltd.

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Address: Development Zone Bonded Area Tokyo Road 162, Qingdao, Shandong, China
Phone: +86-(532)-86098595 | Fax: +86-(532)-86992025 | Map/Directions >>

Profile: Qingdao Weixian Pharmaceutical & Chemical Co., Ltd. specializes in medicine raw materials and intermediates. We are accredited with ISO 9001 quality system. We offer methylsulfonic acid, citric acid, plant extracts, vitamins and amino acids.

2 Products/Chemicals (Click for related suppliers)

• N-Methyl Piperazine

IUPAC Name: 1-methylpiperazine | CAS Registry Number: 109-01-3
Synonyms: N-Methylpiperazine, 1-Methylpiperazine, 4-Methylpiperazine, N'-Methylpiperazine, PIPERAZINE, 1-METHYL-, 1-Methyl-piperazine, nchembio.87-comp44, N-METHYL-PIPERAZINE, CCRIS 6686, WLN: T6M DNTJ D1, 130001_ALDRICH, 14549_FLUKA, 68810_FLUKA, EINECS 203-639-5, NSC 30195, NSC30195, NSC30675, BRN 0102724, AI3-25360, LS-112841

Molecular Formula:	C₅H₁₂N₂	Molecular Weight:	100.162180 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	2

InChIKey: PVOAHINGSUIXLS-UHFFFAOYSA-N

• Sildenafil Citrate

IUPAC Name: 5-[2-ethoxy-5-(4-methylpiperazin-1-yl)sulfonylphenyl]-1-methyl-3-propyl-4H-pyrazolo[4,3-d]pyrimidin-7-one; 2-hydroxypropane-1,2,3-tricarboxylic acid | CAS Registry Number: 171599-83-0
Synonyms: Revatio, Sildenafil citrate, VIAGRA, Penegra, Patrex, Revatio (TN), Wan Ai Ke, Viagra (TN), Ambap5516, Sildenafil citrate [USAN], Sildenafil citrate (JAN/USAN), IUK-92,480, SL-00761, UK 92480-10, UK-92480, LS-111685, UK-92480-10, D02229, 1-((3-(6,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo(4,3-d)pyrimidin-5-yl)-4-ethoxyphenyl)sulfonyl)-4-methylpiperazine citrate (1:1), Piperazine, 1-((3-(6,7-dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo(4,3-d)pyrimidin-5-yl)-4-ethoxyphenyl)sulfonyl)-4-methyl-, 2-hydroxy-1,2,3-propanetricarboxylate (1:1)

Molecular Formula:	C₂₈H₃₈N₆O₁₁S	Molecular Weight:	666.699920 [g/mol]
H-Bond Donor:	5	H-Bond Acceptor:	16

InChIKey: DEIYFTQMQPDXOT-UHFFFAOYSA-N