CN Patent

CN112159434A — 枸橼酸焦磷酸铁配合物的制备方法

Assigned to Beijing Fengrui Pharmaceutical Technology Co ltd · Expires 2021-01-01 · 5y expired

What this patent protects

本发明涉及一种枸橼酸焦磷酸铁配合物的制备方法，所述方法，包括以下步骤：取枸橼酸盐2.941g，焦磷酸盐2.23g‑3.13g，硫酸铁2.523g加入45ml水中；0‑35℃搅拌至完全溶解,搅拌下反应2‑6小时，得深绿色溶液；温度保持在0‑35℃，搅拌下将析晶剂缓慢滴加至深绿色溶液中，滴加完全后，继续搅拌析晶1‑2小时，得浅绿色沉淀，抽滤，固体干燥15‑20小时即得枸橼酸焦磷酸混配络合物。

USPTO Abstract

本发明涉及一种枸橼酸焦磷酸铁配合物的制备方法，所述方法，包括以下步骤：取枸橼酸盐2.941g，焦磷酸盐2.23g‑3.13g，硫酸铁2.523g加入45ml水中；0‑35℃搅拌至完全溶解,搅拌下反应2‑6小时，得深绿色溶液；温度保持在0‑35℃，搅拌下将析晶剂缓慢滴加至深绿色溶液中，滴加完全后，继续搅拌析晶1‑2小时，得浅绿色沉淀，抽滤，固体干燥15‑20小时即得枸橼酸焦磷酸混配络合物。

Drugs covered by this patent

Patent Metadata

Patent number
CN112159434A
Jurisdiction
CN
Classification
—
Expires
2021-01-01
Drug substance claim
No
Drug product claim
No
Assignee
Beijing Fengrui Pharmaceutical Technology Co ltd
Source
FDA Orange Book + USPTO grounding via Google Patents

Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.

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