- 8 9 - 



The methyl phenol-3-methylal-4 purified from the calcium salt, 

 melts at 59 to 59,8°, and boils at 219 to 22 i° (726 mm. pressure). 

 It has a very pleasant odour, reminding of that of pure salicylic 

 aldehyde. Melting point of the oxime 108,5 to 109°; melting point 

 of the semicarbazone 254 or 272 °; melting point of the phenyl 

 hydrazone 160 to 160,5°. When heated with caustic potash to 220 , 

 it oxidises into m-cresotinic acid (a-m-homosalicylic acid) of the 

 melting point 176°; its methyl derivative yields with the same reaction 

 also m-cresotinic acid, and on oxidation with potassium permanganate 

 methoxyterephthalic acid of the melting point 277 to 279°. From 

 these results the constitution of the aldehyde is at once apparent. 

 Its isomeride, methylphenol-3-methylal-2 of the melting point 31,4 to 

 31,9° boils at 728 mm. pressure at 228 to 229,3°. The odour of 

 this body resembles that of salicylic aldehyde. Melting point of the 

 oxime 111 to 112°; melting point of the semicarbazone 214 or 244° 

 respectively; melting point of the phenyl hydrazone 170,2 to 171,4°. 

 Caustic potash converts it a 220° into /?-m-homosalicylic acid of the 

 melting point 168 to 169°. Its methyl ether is converted on oxidation 

 with potassium permanganate into 3 -methoxy-o-toluylic acid of the 

 melting point 139°. 



Eucalyptol (cineol), crystallising. We would here again 

 call attention to the fact that we only manufacture the pure body. 

 This has a melting point of — 1 °, and is optically inactive. We lay 

 special stress on these properties, as they are characteristic of the pure 

 body, and as products are met with in commerce which are offered 

 as eucalyptol, but which are nothing else than a rectified eucalyptus 

 oil. Such makeshifts can naturally be supplied at a decidedly lower 

 price than our product. 



Geraniol from palmarosa oil. With the low price of pal- 

 marosa oil, this preparation now comes cheaper than the one prepared 

 from citronella oil, and can be supplied in any quantity. It possesses 

 a fine rose-like odour, and deserves to be submitted to a thorough test. 



Heliotropin. The price of this product has now reached the 

 extreme limit of possibility. In consequence of this the use has in- 

 creased tenfold during the last few years. 



Linalyl acetate. This body, as is well known, is the character- 

 istic principal constituent of lavender oil and bergamot oil. It is 

 manufactured by us by chemical process in the pure state, and con- 

 tains about 80% linalyl acetate; the remainder of about 2O°/ con- 

 sists of linalool, which is also present in the free state in oil of 

 bergamot. 



Linalyl acetate is therefore to be considered as a concentrated 

 terpeneless bergamot oil , practically about 2 1 / 2 times stronger than 



