Compound Benzoin Tincture
» Prepare Compound Benzoin Tincture as follows.
| Benzoin, in moderately coarse powder | 100 g |
| Aloe, in moderately coarse powder | 20 g |
| Storax | 80 g |
| Tolu Balsam | 40 g |
| To make | 1000 mL |
Prepare a Tincture by Process M (see Pharmaceutical Dosage Forms 
1151
), using alcohol as the menstruum.
1151), using alcohol as the menstruum.
Packaging and storage—
Preserve in tight, light-resistant containers, and avoid exposure to direct sunlight and to excessive heat.
Labeling—
Label it to indicate that it is flammable.
Specific gravity 841:
between 0.870 and 0.885.
841:
between 0.870 and 0.885.
Limit of nonvolatile residue—
Evaporate 3 mL of Tincture in a suitable tared dish on a steam bath, and dry the residue at 100
for 2 hours: the weight of the residue is between 525 mg and 675 mg.
for 2 hours: the weight of the residue is between 525 mg and 675 mg.
Alcohol content, Method II 611:
between 74.0% and 80.0% of C2H5OH, the dilution to approximately 2% alcohol being made with methanol instead of with water.
611:
between 74.0% and 80.0% of C2H5OH, the dilution to approximately 2% alcohol being made with methanol instead of with water.
Auxiliary Information—
Please check for your question in the FAQs before contacting USP.
| Topic/Question | Contact | Expert Committee |
| Monograph | Feiwen Mao, M.S.
Scientist 1-301-816-8320 |
(MDOOD05) Monograph Development-Ophthalmics Oncologics and Dermatologicals |
USP32–NF27 Page 1647