18
Jan
Fixative in perfumes and flavourings Benzyl salicylate is a salicylic acid benzyl ester a chemical compound most frequently used in cosmetics. Benzyl benzoate is one of the older preparations used to treat.
Fragmentation Amides butyramide NH2 O MW 87 M 87 59 M-28 mz 44 OCNH2 NH2 O H α cleavage McLafferty.
Benzyl alcohol mass. Benzyl alcohol is an aromatic alcohol with the formula C 6 H 5 CH 2 OH. The benzyl group is often abbreviated Bn not to be confused with Bz which is used for benzoyl thus benzyl alcohol is denoted as BnOHBenzyl alcohol is a colorless liquid with a mild pleasant aromatic odor. It is a useful solvent due to its polarity low toxicity and low vapor pressure.
Benzyl Alcohol Lotion 5 received full market approval as a prescription medication for use in patients 6 months of age and older. Benzyl Alcohol Lotion 5 is the first head lice product approved by the FDA with benzyl alcohol as the active pharmaceutical ingredient. C 6 H 5 CH 2 OH.
10814 grams per mole. 1044 grams per cubic centimetre. 2579 K -152 o C Boiling Point.
4784 K 2053 o C Physical Properties. Under standard conditions benzyl alcohol is a colourless slightly aromatic liquid. Its solubility in water corresponds to 35g100mL at 20 o C and 429g100mL at 25 o.
This compound is soluble. Benzyl benzoate is a benzoate ester obtained by the formal condensation of benzoic acid with benzyl alcohol. It has been isolated from the plant species of the genus Polyalthia.
It has a role as a scabicide an acaricide and a plant metabolite. It is a benzyl ester and a benzoate ester. It derives from a benzoic acid.
Benzyl benzoate is one of the older preparations used to treat. Benzyl chloride was first prepared from treatment of benzyl alcohol with hydrochloric acid. Industrially benzyl chloride is the precursor to benzyl esters which are used as plasticizers flavorants and perfumes.
Mossy accord - isoeugenol verymoss 10 and benzyl salicylate. From essential oils eg. Dianthus caryophyllus Populus Primula spp.
Fixative in perfumes and flavourings Benzyl salicylate is a salicylic acid benzyl ester a chemical compound most frequently used in cosmetics. It appears as an almost colourless liquid and is rather faint. Water Aqua Eau Alcohol Denat Polyurethane-14 Butylene Glycol PEG-60 Hydrogenated Castor Oil Panthenol Tocopheryl Acetate Ascorbic Acid Biotinoyl Tripeptide-1 Oleanolic Acid Apigenin Urtica Dioica Nettle Extract Alcohol Aesculus Hippocastanum Horse Chestnut Seed Extract Helichrysum Italicum Extract Nelumbo Nucifera Flower Extract Adansonia Digitata Fruit.
Fragmentation Ethers Sulfides. Ethers M usually stronger than corresponding alcohol. Loss of alcohol Benzyl ester rearrangement O H O OHOCCH 2 can fragment further O O R C O X H X H O R X CH2 O.
Fragmentation Amides butyramide NH2 O MW 87 M 87 59 M-28 mz 44 OCNH2 NH2 O H α cleavage McLafferty. Some of the fragment modes of benzyl alcohol are loss of one two or three hydrogen atoms MH fragment of Benzyl alcohol also rearranges to form hydroxy tropylium ion. The OH group in the Benzyl positions fragments in a way which favors charge retention on the aryl group.
The molecular ion peak is intense. The peak due to the loss of hydrogen radical M - H is small. Abietic acid C19H29COOH Acenaphthene C12H10 Acenaphthoquinone C12H6O2 Acenaphthylene C12H8 Acetaldehyde CH3CHO Acetanilide C8H9NO Acetic acid CH3COOH Acetone CH3COCH3 Acetonitrile CH3CN Acetophenone C8H8O Benzaldehyde C6H5CHO Benzene C6H6 Benzoic Acid C6H5COOH Benzyl Alcohol C7H8O Bromobenzene C6H5Br Bromomethane CH3Br Butanal.
The mass spectra of simple hydrocarbons have peaks at mz values corresponding to the ions produced by breaking C-C bonds. Peaks can occur at. Mz 15 29 43 57 71 85 etc.
CH 3 C 2 H 5 C 3 H 7 C 4 H 9 C 5 H 11 C 6 H 13 the stability of the carbocation formed affects its abundance the more stable the cation the higher the peak the more alkyl groups attached to the. Molecular mass or molar mass are used in stoichiometry calculations in chemistry. In related terms another unit of mass often used is Dalton Da or unified atomic mass unit u when describing atomic masses and molecular masses.
It is defined to be 112 of the mass of one atom of carbon-12 and in older works is also abbreviated as amu. Also important in this field is Avogadros number N. An example is the reduction of methyl benzoate to benzyl alcohol and methanol.
Grignard reaction with aldehydes and ketones. The Grignard reaction is the only simple method available that is capable of producing primary secondary and tertiary alcohols. To produce a primary alcohol the Grignard reagent is reacted with formaldehyde.
It undergoes 12-addition by the alcohol Step 2 arrows C and D whereupon the proton from the alcohol is transferred to one of the OH groups Step 3 arrows E and F. Subsequent 12-elimination of water Step 4 arrows G and H leads to the protonated ester and the ester is then deprotonated Step 5 arrows I.