UMBELLIFERaS 319•and oxypentadecylic acid C 15 H 30 O 3. They also isolated valerianic and
two methyl-ethyl-acetic acids from the oil. The oil obtained from the
•seeds, which yields about 1 per cent., has a specific gravity *856 to
- 890,
and an optical rotation of + 10° to + 13°. It contains phellandrene,
methyl-ethyl-acetic and oxymyristic acids.
E. Booker and A. Hahn have recently isolated a crystalline lactone
of the formula C 16 H 1 gO 8 in the last runnings of angelica root oil. From
200 grms. they obtained 10 grms. of a lactone which, when recrystal-
lised from ethyl ether and light petroleum melted at 83
°
. It boils
without decomposition at 250°. The lactone is an unsaturated body;
when brominated in a glacial acetic acid solution it yields a dibromide,
which, when recrystallised from glacial acetic acid, melts with decom-
position at 143° to 145°.
Schimmel & Co.
1
have examined the following samples from various
parts of the plant:—
Solubility in 90 per cent.
Oilfrom Alcohol.Leaves (Sept.)Boot
Seed(Oct.)•
0-8550
0-8697
0-8767
0-8733
0-8623
+ 28°
+ 22°
+ 20°
+' 28°
+ 12°
2'
8'
11'
23'
12'
W
D20°-1-47782
1-48044
1-48316
1-48083
1-48681
Acid
V.0-5
1-3
1-6
2-5
18-1
Ester
V.17-6
22-6
21-1
25-9
18-1
In 6 vol., with opalescence.
». 5 „ „
,, 2-5 vol. a. m.
„ 3 vol. a. m.
,, 6 vol., with opalescence.The oil distilled from the whole fresh herb has the following char-
acters :—
Specific gravity 0'855 to 0-890
Optical rotation + 8° „ + 25°
Refractive index 1-4770 „ 1-4830
Acid value... 0 „ 3
Ester „.,17 „ 25
,, „ (after acetylation) ..... 51
Japanese angelica root, from which an oil is distilled, is from
Angelica anomala (Angelica refracta ?). The oil, which is obtained to
the extent of '1 to *2 per cent, of the root used, has a specific gravity
-910 to '915. At 10° it becomes thick, and at 0° it solidifies to a paste.
The crystalline mass thus deposited consists mainly of a fatty acid
melting at 62° to 63°. The oil distils over between 170° and 310°; the
last fractions have a blue-green colour. This oil has a more acrid
odour than the Saxon oil, but distinctly recalls musk, although this is
to a great extent covered by the other and less pleasant odour of the oil.
The chief employment for angelica oil is in liqueur making.
OIL OF CARROT.The seed of the carrot Daucus carota, yields from 1 to 15 per cent,
of oil, which has the following characters:—
Specific gravity 0-870 to 0-945
Optical rotation - 11° „ - 40°
Refractive index 1-4820 „ 14920
Acid value ......... 1 ,, 5
Ester „ 17 „ 55
„ „ (after acetylation) 77 „ 96
1
Jour, prakt. Chem., ii. 83 (1911), 243.