cob(I)alamin
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Identifiers
Molecular formula
C62H89CoN13O14P-SMILES
CC1=CC2=C(C=C1C)N(C=N2)[C@@H]3[C@@H]([C@@H]([C@H](O3)CO)OP(=O)(O)O[C@H](C)CNC(=O)CC[C@@]\4([C@H]([C@@H]5[C@]6([C@@]([C@@H](C(=N6)/C(=C\7/[C@@]([C@@H](C(=N7)/C=C\8/C([C@@H](C(=N8)/C(=C4\[N-]5)/C)CCC(=O)N)(C)C)CCC(=O)N)(C)CC(=O)N)/C)CCC(=O)N)(C)CC(=O)N)C)CC(=O)N)C)O.[Co]
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Odor profile
Fragrance Odorless 69.61% Savory 36.13% Cooling 29.99% Meaty 28.86% Roasted 23.68% Cooked 20.9% Milky 18.6% Animal 16.1% Popcorn 15.36% Nutty 13.98% Flavor Bitter 76.34% Odorless 41.71% Bland 29.45% Sweet-like 21.19% Mild 19.74% Cedarleaf 19.69% Taco 19.03% Nitrile 18.98% Very mild 18.94% Roasted peanuts 18.56% Odor impact est.
Low -
Properties
pKa est.
2.62 (strong acid)Molecular weight
1330.4 g/molMelting point expt.
- > 300
Boiling point
- > 300
- > 300 °C
Flash point
- 285.58 ˚C est.
Solubility expt.
- 12.5 mg/mL
- Soluble in alcohol; insoluble in acetone, chloroform, ether.
- In water, 1,25X10+4 mg/l @ 25 °C
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Synonyms
- cob(I)alamin
- cyanocobalamin
- vitamin B12s
- Hydridocobalamin
- Hydrido-Cobalamin
- vitamin B-12s
- CHEBI:15982
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Applications
Cob(I)alamin is the cobalt center in the +1 oxidation state of cobalamin, considered a highly reactive intermediate and potential catalyst in cobalt‑mediated transformations. In practice, it is often evaluated as a biomimetic cofactor in biocatalysis and organic synthesis, capable of acting as a reducing agent and as a mediator for methyl and alkyl transfer in laboratory-scale reactions, supporting radical- and alkylation-type pathways. It is commonly researched in pharmaceutical and agrochemical synthesis to develop biomimetic cobalt catalysts. It also holds potential in materials science and sensing based on B12-derived compounds, where the cobalt core enables redox-active materials. Finally, cob(I)alamin is used in analytical chemistry and mechanistic studies as a reference system for B12‑dependent transformations. Subject to local regulations and formulation limits.
gpt-5-nano
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Solubility @25˚C
Solvent Solubility (g/L) ethanol 15.88 methanol 90.66 isopropanol 4.5 water 2.12 ethyl acetate 6.25 n-propanol 7.86 acetone 22.04 n-butanol 3.46 acetonitrile 14.88 DMF 311.28 toluene 0.36 isobutanol 2.84 1,4-dioxane 18.93 methyl acetate 15.38 THF 44.84 2-butanone 11.71 n-pentanol 2.71 sec-butanol 2.62 n-hexane 0.05 ethylene glycol 34.07 NMP 229.08 cyclohexane 0.06 DMSO 162.59 n-butyl acetate 4.03 n-octanol 1.4 chloroform 26.32 n-propyl acetate 6.15 acetic acid 179.5 dichloromethane 23.1 cyclohexanone 11.97 propylene glycol 28.59 isopropyl acetate 2.55 DMAc 158.84 2-ethoxyethanol 37.57 isopentanol 1.62 n-heptane 0.05 ethyl formate 23.31 1,2-dichloroethane 8.52 n-hexanol 1.62 2-methoxyethanol 107.47 isobutyl acetate 2.58 tetrachloromethane 1.88 n-pentyl acetate 4.67 transcutol 29.37 n-heptanol 1.95 ethylbenzene 0.23 MIBK 1.79 2-propoxyethanol 30.8 tert-butanol 2.08 MTBE 0.8 2-butoxyethanol 20.74 propionic acid 25.41 o-xylene 0.21 formic acid 359.49 diethyl ether 1.67 m-xylene 0.18 p-xylene 0.45 chlorobenzene 1.53 dimethyl carbonate 28.79 n-octane 0.04 formamide 247.66 cyclopentanone 45.09 2-pentanone 5.12 anisole 1.88 cyclopentyl methyl ether 2.92 gamma-butyrolactone 104.47 1-methoxy-2-propanol 40.17 pyridine 17.89 3-pentanone 3.97 furfural 119.88 n-dodecane 0.03 diethylene glycol 54.58 diisopropyl ether 0.18 tert-amyl alcohol 1.54 acetylacetone 14.34 n-hexadecane 0.03 acetophenone 4.72 methyl propionate 12.28 isopentyl acetate 2.51 trichloroethylene 32.79 n-nonanol 1.4 cyclohexanol 1.4 benzyl alcohol 4.51 2-ethylhexanol 0.63 isooctanol 1.15 dipropyl ether 1.39 1,2-dichlorobenzene 1.98 ethyl lactate 11.66 propylene carbonate 37.98 n-methylformamide 165.96 2-pentanol 1.01 n-pentane 0.04 1-propoxy-2-propanol 12.96 1-methoxy-2-propyl acetate 8.59 2-(2-methoxypropoxy) propanol 10.82 mesitylene 0.09 ε-caprolactone 17.85 p-cymene 0.17 epichlorohydrin 58.87 1,1,1-trichloroethane 4.27 2-aminoethanol 33.91 morpholine-4-carbaldehyde 157.25 sulfolane 135.32 2,2,4-trimethylpentane 0.02 2-methyltetrahydrofuran 7.14 n-hexyl acetate 3.98 isooctane 0.01 2-(2-butoxyethoxy)ethanol 17.35 sec-butyl acetate 1.95 tert-butyl acetate 1.7 decalin 0.03 glycerin 94.69 diglyme 34.45 acrylic acid 55.97 isopropyl myristate 0.84 n-butyric acid 16.29 acetyl acetate 7.6 di(2-ethylhexyl) phthalate 2.82 ethyl propionate 4.65 nitromethane 312.21 1,2-diethoxyethane 4.19 benzonitrile 4.91 trioctyl phosphate 1.7 1-bromopropane 1.49 gamma-valerolactone 154.24 n-decanol 0.9 triethyl phosphate 2.18 4-methyl-2-pentanol 0.46 propionitrile 6.27 vinylene carbonate 48.27 1,1,2-trichlorotrifluoroethane 120.41 DMS 7.51 cumene 0.16 2-octanol 0.89 2-hexanone 4.54 octyl acetate 1.8 limonene 0.2 1,2-dimethoxyethane 36.76 ethyl orthosilicate 1.58 tributyl phosphate 1.94 diacetone alcohol 6.86 N,N-dimethylaniline 1.42 acrylonitrile 20.11 aniline 2.05 1,3-propanediol 31.69 bromobenzene 1.22 dibromomethane 7.11 1,1,2,2-tetrachloroethane 22.57 2-methyl-cyclohexyl acetate 2.22 tetrabutyl urea 3.63 diisobutyl methanol 0.26 2-phenylethanol 3.64 styrene 0.35 dioctyl adipate 2.3 dimethyl sulfate 61.26 ethyl butyrate 3.0 methyl lactate 36.32 butyl lactate 10.23 diethyl carbonate 2.96 propanediol butyl ether 22.3 triethyl orthoformate 2.87 p-tert-butyltoluene 0.14 methyl 4-tert-butylbenzoate 5.37 morpholine 27.75 tert-butylamine 0.48 n-dodecanol 0.54 dimethoxymethane 61.22 ethylene carbonate 26.22 cyrene 29.27 2-ethoxyethyl acetate 11.37 2-ethylhexyl acetate 1.79 1,2,4-trichlorobenzene 3.73 4-methylpyridine 7.55 dibutyl ether 0.88 2,6-dimethyl-4-heptanol 0.26 DEF 14.14 dimethyl isosorbide 20.08 tetrachloroethylene 12.86 eugenol 10.03 triacetin 9.22 span 80 9.51 1,4-butanediol 12.63 1,1-dichloroethane 5.11 2-methyl-1-pentanol 1.33 methyl formate 153.39 2-methyl-1-butanol 1.74 n-decane 0.06 butyronitrile 3.79 3,7-dimethyl-1-octanol 0.63 1-chlorooctane 0.33 1-chlorotetradecane 0.11 n-nonane 0.05 undecane 0.04 tert-butylcyclohexane 0.02 cyclooctane 0.02 cyclopentanol 5.19 tetrahydropyran 4.47 tert-amyl methyl ether 0.75 2,5,8-trioxanonane 18.41 1-hexene 0.27 2-isopropoxyethanol 12.42 2,2,2-trifluoroethanol 88.57 methyl butyrate 7.68 Scent© AI
| Maximum acceptable concentrations in the finished product (%) | |||
|---|---|---|---|
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Category 1
Products applied to the lips
|
No restriction |
Category 7A
Rinse-off products applied to the hair with some hand contact
|
No restriction |
|
Category 2
Products applied to the axillae
|
No restriction |
Category 7B
Leave-on products applied to the hair with some hand contact
|
No restriction |
|
Category 3
Products applied to the face/body using fingertips
|
No restriction |
Category 8
Products with significant anogenital exposure
|
No restriction |
|
Category 4
Products related to fine fragrance
|
No restriction |
Category 9
Products with body and hand exposure, primarily rinse off
|
No restriction |
|
Category 5A
Body lotion products applied to the body using the hands (palms), primarily leave on
|
No restriction |
Category 10A
Household care products with mostly hand contact
|
No restriction |
|
Category 5B
Face moisturizer products applied to the face using the hands (palms), primarily leave on
|
No restriction |
Category 10B
Household care products with mostly hand contact, including aerosol/spray products (with potential leave-on skin contact)
|
No restriction |
|
Category 5C
Hand cream products applied to the hands using the hands (palms), primarily leave on
|
No restriction |
Category 11A
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate without UV exposure
|
No restriction |
|
Category 5D
Baby Creams, baby Oils and baby talc
|
No restriction |
Category 11B
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate with potential UV exposure
|
No restriction |
|
Category 6
Products with oral and lip exposure
|
No restriction |
Category 12
Products not intended for direct skin contact, minimal or insignificant transfer to skin
|
No restriction |