Process for preparation of cysteamine bitartrate
The present invention provides process for preparation of cysteamine bitartrate comprising reacting cysteamine or its salt with tartaric acid. The present invention further provides crystalline form L1 of cysteamine bitartrate having characteristic diffraction peaks at 10.36, 14.54, 17.23, 18.03, 19...
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| creator | Siyan, Rajinder Singh Singh, Girij Pal Gunjal, Sukhdeo Sampat Walunj, Raju Muktaji Bhise, Nandu Baban Trivedi, Anurag Chaudhari, Pankaj Ramchandra |
| description | The present invention provides process for preparation of cysteamine bitartrate comprising reacting cysteamine or its salt with tartaric acid. The present invention further provides crystalline form L1 of cysteamine bitartrate having characteristic diffraction peaks at 10.36, 14.54, 17.23, 18.03, 19.24, 20.76, 21.20, 22.02, 23.37, 23.64, 27.71, 28.28, 29.26, 31.33, 32.84, 33.83, 35.51, 36.74±0.2 degree two theta in an X-ray diffraction pattern and process for preparation thereof. The present invention provides crystalline form L2 of cysteamine bitartrate having characteristic diffraction peaks at 7.4, 10.3, 11.0, 11.4, 14.4, 14.9, 18.6, 19.4, 20.1, 20.8, 21.9, 22.3, 22.5, 23.5±0.2 degree two theta in an X-ray diffraction pattern and process for preparation thereof. |
| format | Patent |
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The present invention further provides crystalline form L1 of cysteamine bitartrate having characteristic diffraction peaks at 10.36, 14.54, 17.23, 18.03, 19.24, 20.76, 21.20, 22.02, 23.37, 23.64, 27.71, 28.28, 29.26, 31.33, 32.84, 33.83, 35.51, 36.74±0.2 degree two theta in an X-ray diffraction pattern and process for preparation thereof. The present invention provides crystalline form L2 of cysteamine bitartrate having characteristic diffraction peaks at 7.4, 10.3, 11.0, 11.4, 14.4, 14.9, 18.6, 19.4, 20.1, 20.8, 21.9, 22.3, 22.5, 23.5±0.2 degree two theta in an X-ray diffraction pattern and process for preparation thereof.</description><language>eng</language><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS ; CHEMISTRY ; HUMAN NECESSITIES ; HYGIENE ; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES ; MEASURING ; MEDICAL OR VETERINARY SCIENCE ; METALLURGY ; ORGANIC CHEMISTRY ; PHYSICS ; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES ; TESTING</subject><creationdate>2019</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20190409&DB=EPODOC&CC=US&NR=10251850B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20190409&DB=EPODOC&CC=US&NR=10251850B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Siyan, Rajinder Singh</creatorcontrib><creatorcontrib>Singh, Girij Pal</creatorcontrib><creatorcontrib>Gunjal, Sukhdeo Sampat</creatorcontrib><creatorcontrib>Walunj, Raju Muktaji</creatorcontrib><creatorcontrib>Bhise, Nandu Baban</creatorcontrib><creatorcontrib>Trivedi, Anurag</creatorcontrib><creatorcontrib>Chaudhari, Pankaj Ramchandra</creatorcontrib><title>Process for preparation of cysteamine bitartrate</title><description>The present invention provides process for preparation of cysteamine bitartrate comprising reacting cysteamine or its salt with tartaric acid. 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The present invention further provides crystalline form L1 of cysteamine bitartrate having characteristic diffraction peaks at 10.36, 14.54, 17.23, 18.03, 19.24, 20.76, 21.20, 22.02, 23.37, 23.64, 27.71, 28.28, 29.26, 31.33, 32.84, 33.83, 35.51, 36.74±0.2 degree two theta in an X-ray diffraction pattern and process for preparation thereof. The present invention provides crystalline form L2 of cysteamine bitartrate having characteristic diffraction peaks at 7.4, 10.3, 11.0, 11.4, 14.4, 14.9, 18.6, 19.4, 20.1, 20.8, 21.9, 22.3, 22.5, 23.5±0.2 degree two theta in an X-ray diffraction pattern and process for preparation thereof.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY HUMAN NECESSITIES HYGIENE INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MEDICAL OR VETERINARY SCIENCE METALLURGY ORGANIC CHEMISTRY PHYSICS PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES TESTING |
| title | Process for preparation of cysteamine bitartrate |
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