GB1379532A - 5,6,7,8-tetrahydrofolic acid crystal and process of producing the crystal - Google Patents

5,6,7,8-tetrahydrofolic acid crystal and process of producing the crystal

Info

Publication number
GB1379532A
GB1379532A GB2220273A GB2220273A GB1379532A GB 1379532 A GB1379532 A GB 1379532A GB 2220273 A GB2220273 A GB 2220273A GB 2220273 A GB2220273 A GB 2220273A GB 1379532 A GB1379532 A GB 1379532A
Authority
GB
United Kingdom
Prior art keywords
crystal
tetrahydrofolic acid
producing
water
crystals
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2220273A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YAMONOUCHI PHARMACEUTICAL CO L
Original Assignee
YAMONOUCHI PHARMACEUTICAL CO L
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by YAMONOUCHI PHARMACEUTICAL CO L filed Critical YAMONOUCHI PHARMACEUTICAL CO L
Publication of GB1379532A publication Critical patent/GB1379532A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D475/00—Heterocyclic compounds containing pteridine ring systems
    • C07D475/02—Heterocyclic compounds containing pteridine ring systems with an oxygen atom directly attached in position 4
    • C07D475/04—Heterocyclic compounds containing pteridine ring systems with an oxygen atom directly attached in position 4 with a nitrogen atom directly attached in position 2

Abstract

1379532 Preparation of the crystals of 5,6,7,8- tetrahydrofolic acid YAMANOUCHI PHARMACEUTICAL CO Ltd 9 May 1973 [12 May 1972] 22202/73 Heading C2C Crystals of 5,6,7,8-tetrahydrofolic acid are prepared by contacting anaerobically amorphous 5,6,7,8-tetrahydrofolic acid with water. The amorphous acid is preferably brought into contact with water by suspending it in water or an aqueous solvent.
GB2220273A 1972-05-12 1973-05-09 5,6,7,8-tetrahydrofolic acid crystal and process of producing the crystal Expired GB1379532A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4693672A JPS497416A (en) 1972-05-12 1972-05-12

Publications (1)

Publication Number Publication Date
GB1379532A true GB1379532A (en) 1975-01-02

Family

ID=12761189

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2220273A Expired GB1379532A (en) 1972-05-12 1973-05-09 5,6,7,8-tetrahydrofolic acid crystal and process of producing the crystal

Country Status (4)

Country Link
JP (1) JPS497416A (en)
DE (1) DE2323124A1 (en)
FR (1) FR2184718B1 (en)
GB (1) GB1379532A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6596721B2 (en) 1994-05-09 2003-07-22 Eprova Ag Stable crystalline (6R) -tetrahydrofolic acid

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH695217A5 (en) * 1999-07-14 2006-01-31 Merck Eprova Ag A process for separation of optical isomers of tetrahydrofolic acid esters and salts tetrahydrofolic acid.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6596721B2 (en) 1994-05-09 2003-07-22 Eprova Ag Stable crystalline (6R) -tetrahydrofolic acid

Also Published As

Publication number Publication date
FR2184718A1 (en) 1973-12-28
DE2323124A1 (en) 1973-11-22
FR2184718B1 (en) 1977-04-29
JPS497416A (en) 1974-01-23

Similar Documents

Publication Publication Date Title
CA980261A (en) Process for the purification and concentration of solutions derived from marine algae
BG27903A3 (en) Method of obtaining of n-(methoxy-methyl-furilmethil)-6,7- benzomorphanes and-morphinanes and their addition salts with acid
GB1426170A (en) Selenium-75 derivatives of steroids
AU475724B2 (en) Electrolytic method forthe simultaneous manufacture of concentrated and dilute aqueous hydroxide solutions
GB1379532A (en) 5,6,7,8-tetrahydrofolic acid crystal and process of producing the crystal
CA988052A (en) Electrolytic cell and process
ES486851A1 (en) Process for the production of ursodesoxycholic acid
GB1509539A (en) Whole blood standards for use in haematology
GB1129670A (en) Method of producing alanine by enzyme reaction
GB1409993A (en) Antitussive
GB1126605A (en) New amino derivatives of gentisic acid and processes of production
ES454489A1 (en) Preparation of a stablized papain solution
GB1497689A (en) Method for producing n-(4-fluorophenyl)-2,3-dichloromaleimide
AU468029B2 (en) 3-hydroxy-2-(3-hydroxyl-octynyl)-5-oxocyclop entanehepranoic acid, derivatives thereof and process
ATE17116T1 (en) SELECTIVE ACYLATION OF HYDROXY-AMINOARYLSULFONS|URE.
FR2097636A5 (en) Stable fish cytolysate - with enzymatically degraded cell membranes
GB1130867A (en) The preparation of optically active -‡-methyl--‡-amino--ß-(hydroxyphenyl)propionic acids
GB1461680A (en) Production of epsilon-nitrocaproic acid
AU5337673A (en) Treatment of waste sulphuric acid
GB1230298A (en)
CA890455A (en) Amides of sulfamic acid, their alkaline salts and process for preparation thereof
CA917333A (en) Aqueous electrocoating solutions and method of making and using same
CA892022A (en) Azo compounds of low solubility in water, their production and use
CA892021A (en) Azo compounds of low solubility in water, their production and use
CA914162A (en) Azo compounds of low solubility in water, their production and use

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees