/ 
Am.  Jour.  Pharm. 
May,  1900. 
Classification  of  Odoriferous  Principles. 
225 
Fourth  Group  :  Phenols  and  Phenol  Ethers. 
Nos.  1  to  9,  Benzol  series  ;  No.  10,  Naphtaline  series. 
No. 
p-Cresol  methyl  ether 
Guaiacol 
Creosol 
Anethol 
Chavicol 
Estragol 
Thymol 
Eugenol 
Safrol 
£-Naphtol  methyl  ether 
(Nerolinj 
Formula. 
CGH4.OCH...CH3 
C6H4.OCH-,.OH 
C6H.!.OHOCH,.CH.i 
C6H4.OCH:j  CH=CH-CH, 
CGH4.OH.CH.,-CH=CHo 
C6H4.OCH:;  .CHo— CH=CHo 
C6H3.C3H7.OH.CH3 
CoH^OH.OCHi.CHo— CH=CHo 
C6H,.OCfroO.CHo— "CH=CHo 
CinH7.OCH:i 
Natural  Occurrence. 
Ylang-ylang  oil. 
Birch  oil,  beechwood  tar. 
1  Birch  oil. 
Anise  oil,  star  anise  oil,  fennel 
oil. 
Betel  oil. 
i  Estragon  oil. 
i  Thyme  oil. 
Clove  oil 
Sassafras  oil,  camphor  oil. 
Fifth  Group:  Acids  and  Acid  Anhydrides. 
Nos.  t  to  2,  unsaturated,  with  open  chain  ;  Nos.  3  to  5,  closed  chain,  Benzol  series. 
Name. 
Constitutional  Forraulse. 
Natural  Occurrence. 
Angelic  acid  :CH2=CH--CH(  CEI3)— COOH 
Tiglic  acid     CHy— CH-C(CH;;)- COOH 
Benzoic  acid  iC6H5— COOH 
Cinnamic  acid  C6H5—CH=CH— COOH 
f  CH=CH— CO 
I 
Coumarin   «j  iC6H+ 
As  an  ester  io  Roman  chamomile  oil. 
As  an  ester  in  Roman  chamomile-oil  and 
croton  oil. 
Balsam  of  Peru,  benzoin  and  Tolu  balsam, 
f  Balsam  of  Peru,  Tolu  balsam,  benzoin 
1    (Sumatra),  storax. 
Touca  bean,  wood-roof  (asperula  odorata). 
Sixth  Group  :  Nitrogen- containing'  Perfumes. 
Nos.  1  to  3,  with  open  chains  ;  No.  4,  closed  chain  ;  Nos.  5  to  12,  closed  chain,  Benzol  series. 
No. 
Name. 
Formula. 
Natural  Occurrence. 
1 
Trimethylamine 
N(CH,);; 
Oil  of  chenopodium. 
2 
Hydrocyanic  acid 
CNH 
'Bitter  almond  oil,  cherrv  lau- 
rel oil. 
3 
Allyl  mustard  oil 
C3H5.NCS 
Mustard  oil,  horseradish, 
aria  officinalis. 
4 
Pyrrol  i 
CH=CHX 
1  /NH 
CH^CH7 
CH=CHX 
\ 
rAs  a  derivative  in  orange  oil 
from  unripe  fruits. 
5 
Indol  | 
1  >NH 
Jasmine  oil. 
CGH+  / 
6 
Phenyl  acetic  acid] 
nitrile    (Benzyl-  \ 
cyanide)  j 
C6H5— CHo.CN 
("Cress  oil  (Lepidium  sativum, 
\    Tropaeolum  majus). 
7 
Mandelic  acid  nitrile 
CGH5— CH(OH).CN 
Almond  oil. 
8 
Nitrobenzol  (Mir-) 
bane  oil)  / 
C6H5N02 
9 
Tonquinol  (Musk) 
Baur)  J 
C6H.(N02):j.C4H9.CH3 
10 
Anthranilic  acid) 
methyl  ester  j 
Anthranil  i 
CeH^NHxCOOCH; 
Neroli,  jasmine  oil. 
/CO 
11 
( 
C6H4  | 
XNH 
7CH=CH 
12 
Quinoliue  -j 
CGH4(  | 
VN  =CH 
