Methoxybenzyl alcohols
| Methoxybenzyl alcohols | ||||||
| Surname | 2-methoxybenzyl alcohol | 3-methoxybenzyl alcohol | 4-methoxybenzyl alcohol | |||
| other names |
o -methoxybenzyl alcohol |
m -methoxybenzyl alcohol |
p -methoxybenzyl alcohol anise alcohol |
|||
| Structural formula |
|
|
|
|||
| CAS number | 612-16-8 | 6971-51-3 | 105-13-5 | |||
| PubChem | 69154 | 81437 | 7738 | |||
| Molecular formula | C 8 H 10 O 2 | |||||
| Molar mass | 138.17 g mol −1 | |||||
| Physical state | liquid | solid / liquid | ||||
| Brief description | colorless liquid | yellowish liquid | colorless to yellowish, with a sweetish odor |
|||
| density | 1.12 g cm −3 (20 ° C) | 1.112 g cm −3 (25 ° C) | 1.113 g cm −3 (25 ° C) | |||
| Melting point | 22-25 ° C | |||||
| boiling point | 248-250 ° C | 250 ° C (964 hPa ) | 259 ° C | |||
| solubility | practically insoluble in water | poorly soluble in water | ||||
|
GHS labeling |
|
|
|
|||
| H and P phrases | no H-phrases | no H-phrases | 302-315-319-335 | |||
| no P-phrases | no P-phrases | 261-305 + 351 + 338 | ||||
In chemistry, methoxybenzyl alcohols form a group of substances that are derived from both benzyl alcohol and anisole . The structure consists of a benzene ring with attached hydroxymethyl (-CH 2 OH) and methoxy groups (-OCH 3 ) as substituents . Their different arrangement results in three constitutional isomers with the empirical formula C 8 H 10 O 2 . Primarily they can be viewed as methoxy substituted benzyl alcohols. 4-Methoxybenzyl alcohol is mainly known by its common name anisalcohol , which is used, among other things, as a fragrance. In the English-language literature, the term anisyl alcohol is also used for the 2- and 3-methoxybenzyl alcohols.
Web links
- Freepatentsonline: Method for producing anis alcohole (by hydrogenation of methoxybenzaldehydes )
Individual evidence
- ↑ a b c d e f Entry for CAS no. 612-16-8 in the GESTIS substance database of the IFA , accessed on December 28, 2019(JavaScript required) .
- ↑ a b c d e f Entry for CAS no. 6971-51-3 in the GESTIS substance database of the IFA , accessed on December 28, 2019(JavaScript required) .
- ↑ a b c d e f g Entry for CAS no. 105-13-5 in the GESTIS substance database of the IFA , accessed on December 28, 2019(JavaScript required) .
See also
Derivatives
- Hydroxymethoxybenzyl alcohols C 8 H 10 O 3 (10 isomers, e.g. vanillyl alcohol = 4-hydroxy-3-methoxybenzyl alcohol and isovanillyl alcohol = 3-hydroxy-4-methoxybenzyl alcohol)