| FEMA | N/A |
| CAS | 68-19-9 |
| EINECS | 200-680-0 |
| JECFA Food Flavoring | N/A |
| CoE Number | N/A |
| Organoleptic Notes |
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| Odor | N/A |
| Flavor | N/A |
| Material Notes | a cobalt-containing coordination compound produced by intestinal micro-organisms and found also in soil and water. higher plants do not concentrate vitamin b 12 from the soil and so are a poor source of the substance as compared with animal tissues. intrinsic factor is important for the assimilation of vitamin b 12. Antipernicious anaemia factor isol. from liver extracts; now obt. comly. from fermentation liquors of Streptomyces griseus and other microorganisms, e.g. Propionibacterium shermanii, Pseudomonas denitrificans. Nutrient, dietary supplement, stabiliser. Haematopoietic vitamin [DFC] Cyanocobalamin is an especially common vitamer of the vitamin B12 family. B12's structure is based on a corrin ring, which, although similar to the porphyrin ring found in heme, chlorophyll, and cytochrome, has two of the pyrrole rings directly bonded. The central metal ion is Co (cobalt). B12 cannot be made by plants or by animals, as the only type of organisms that have the enzymes required for the synthesis of B12 are bacteria and archaea. Higher plants do not concentrate vitamin B12 from the soil and so are a poor source of the substance as compared with animal tissues. Vitamin B12 is naturally found in foods including meat (especially liver and shellfish), eggs, and milk products. [Wikipedia] |