Quassin is the bitter principle of quassia wood (occurring as a mixture of two isomeric forms). It shall be a good commercial grade of purified amorphous quassin, standardized as to bitterness.
Bitterness. An aqueous solution of quassin shall be distinctly bitter at a 1 to 250,000 dilution. To test: Dissolve 0.1 gram of quassin in 100 mL of 95 percent alcohol, then dilute 4 mL of the solution to 1,000 mL with distilled water, mix well and taste.
Identification test. Dissolve about 0.5 gram of quassin in 10 mL of 95 percent alcohol and filter. To 5 mL of the filtrate, add 5 mL of concentrated hydrochloric acid and 1 mg of phloroglucinol and mix well. A red color develops.
Optical assay. When 1 gram of quassin (in solution in a small amount of 95 percent alcohol) is dissolved in 10,000 mL of water, the absorbance of the solution in a 1 cm cell at a wavelength of 258 millimicrons shall not be less than 0.400.
Solubility. When 0.5 gram of quassin is added to 25 mL of 190 proof alcohol, it shall dissolve completely.
Copyright ©2024 LegalFix. All rights reserved. LegalFix is not a law firm, is not licensed to practice law, and does not provide legal advice, services, or representation. The information on this website is an overview of the legal insurance products you can purchase—or that may be provided by your employer as an employee benefit or by your credit union or other membership group as a membership benefit.
LegalFix provides its members with access to legal services through a network of provider law firms. LegalFix, its corporate entity, and its officers, directors, employees, agents, and contractors do not provide legal advice, services, or representation—directly or indirectly.
The articles and information on the site are not legal advice and should not be relied upon—they are for information purposes only. You should become a LegalFix member to get legal services from one of our provider law firms.
You should not disclose confidential or potentially incriminating information to LegalFix—you should only communicate such information to your provider law firm.
The benefits and legal services described in the LegalFix legal plans are not always available in all states or with all plans. See the legal plan Benefit Overview and the more comprehensive legal plan contract during checkout for coverage details in your state.
Use of this website, the purchase of legal insurance products, and access to the LegalFix network of provider law firms are subject to the LegalFix Terms of Service and Privacy Policy.
