(Synthetic Remedies.)

It should be borne in mind, as incidentally referred to on page 811, that the possibilities which the constructive processes of organic chemistry open to us are almost beyond limit. Not a few of those products which we have solely heretofore, and do mostly even now, depend upon crude vegetable drugs for their origin, are at the present time being built up synthetically to such perfection as often to challenge recognition of distinctive sources. Of these, the Pharmacopoeia would recognize more than it does were it not for partial secrecy in working formula and manufacture. Quite a number are employed so universally that the present day text-book excluding them might be considered more or less incomplete. In order that the chemical relationship may be better understood they have been treated, so far as practicable, in the same ordered sequence as adopted in Part IV. Before taking them up individually, it may be well to show, by graphic formulas, the facility with which the construction and substitution of one atom or a group of atoms for others may be effected - a process which invariably results in giving each time a different substance. In order to do this, and to carry along direct relationship, some of the compounds previously treated will have to be introduced at the sacrifice of repetition, but this may be considered not in the least a disadvantage to the student.

The majority of these synthetics which contain sulphur are hypnotics or sleep-producers, while those containing nitrogen are antipyretics or anodynes.

Non Pharmacopoelal Organic Carbon Compounds 992

Methane=CH4

Non Pharmacopoelal Organic Carbon Compounds 993

Ethane=C2H6

Non Pharmacopoelal Organic Carbon Compounds 994

Ethyl Alcohol=C2H5OH

Non Pharmacopoelal Organic Carbon Compounds 995

Aldehyde=C2H4O

Non Pharmacopoelal Organic Carbon Compounds 996

Acetic Acid=C2H4O2

Non Pharmacopoelal Organic Carbon Compounds 997

Ethylamine=C2H5NH2

Formaldehyde=CH2O

Formaldehyde=CH2O

Formamide=CHO.NH2

Formamide=CHO.NH2

Non Pharmacopoelal Organic Carbon Compounds 1000

Mercaptan=C2H6SH

Non Pharmacopoelal Organic Carbon Compounds 1001

Sulphonal=C7 H16S2O4

Non Pharmacopoelal Organic Carbon Compounds 1002

Trional=C8H18O4S2

Non Pharmacopoelal Organic Carbon Compounds 1003

Urethane=C3H7NO2

Non Pharmacopoelal Organic Carbon Compounds 1004

Thiophene-di-iodide=C4H2I2S

Non Pharmacopoelal Organic Carbon Compounds 1005

Benzene (Benzol)=C6H6

Non Pharmacopoelal Organic Carbon Compounds 1006

Aniline=C6H5NH2

Non Pharmacopoelal Organic Carbon Compounds 1007

Phenol (Carbolic Acid)= C6H5OH

Non Pharmacopoelal Organic Carbon Compounds 1008

Phenacetin=C10H13NO2

Non Pharmacopoelal Organic Carbon Compounds 1009

Acetanilid=C8H9NO

Non Pharmacopoelal Organic Carbon Compounds 1010

Exalgine=C9H11NO

Non Pharmacopoelal Organic Carbon Compounds 1011

Saccharin=C7H5NO3S

Non Pharmacopoelal Organic Carbon Compounds 1012

Antipyrine=C11H12N2O

Non Pharmacopoelal Organic Carbon Compounds 1013

Pyridine=C5H5N

Non Pharmacopoelal Organic Carbon Compounds 1014

Chinoline=C9H7N

Non Pharmacopoelal Organic Carbon Compounds 1015

Anisic Acid=C8H8O8

Hydrcarbons.

Non Pharmacopoelal Organic Carbon Compounds 1016

Benzene C6H6

Non Pharmacopoelal Organic Carbon Compounds 1017

Nitro-benzene=C6H5NO2

Non Pharmacopoelal Organic Carbon Compounds 1018

Toluene, Methyl-benzene== C6H5.CH3

Non Pharmacopoelal Organic Carbon Compounds 1019

Xylene, Dimethyl-benzene= C6H4(CH3)2

Non Pharmacopoelal Organic Carbon Compounds 1020

Cymene, Methyl-propyl-benzene=C6H4.CH3.C3H7

Alcohols.

Non Pharmacopoelal Organic Carbon Compounds 1021

Phenol or Carbolic Acid= C6H5OH

Non Pharmacopoelal Organic Carbon Compounds 1022

Resorcinol =C6H4(OH)2

Non Pharmacopoelal Organic Carbon Compounds 1023

Pyrogallol-C6H3(OH)3

Non Pharmacopoelal Organic Carbon Compounds 1024

Cresol=C6H4.CH3.OH

Non Pharmacopoelal Organic Carbon Compounds 1025

Thymol=C6H3CH3.C3H7OH

Acids.

Non Pharmacopoelal Organic Carbon Compounds 1026

Benzoic Acid=C8H5.CO2H

Non Pharmacopoelal Organic Carbon Compounds 1027

Phtalic Acid=C8H4(CO2H)2

Non Pharmacopoelal Organic Carbon Compounds 1028

Gallic Acid=C6H2CO2H.(OH)2

Non Pharmacopoelal Organic Carbon Compounds 1029

Salicylic Acid=C6H4.CO2H.OH

Non Pharmacopoelal Organic Carbon Compounds 1030

Benzaldehyde, Oil of Bitter Almond-C6H5.COH