Color control & stability in acetaminophen

Details Color control & stability in acetaminophen Color control & stability in acetaminophen

1993-08-11

1995-03-21

Kumar, Shailendra

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

564142, 564144, 564223, 564 2, C07C23305

Patent

active

053997603

ABSTRACT:
A method is provided for purifying crude N-acetyl-para-aminophenol (APAP) containing color bodies or their precursors, the method comprising: a) forming a solution of the crude APAP; and b) subsequently contacting the solution with substoichiometric quantifies of an acetylating agent for a sufficient period of time to convert said color bodies or their precursors to substantially non-color bodies/stable, colorless substances; said quantities of acetylating agent provided is such that substantially none of the APAP is converted to other compounds.

REFERENCES:
patent: 3113150 (1963-12-01), Young
patent: 3748358 (1973-07-01), Baron
patent: 4524217 (1985-06-01), Davenport et al.
patent: 4607125 (1986-08-01), Mott
patent: 5155269 (1992-10-01), Dunn et al.
Merck Index, 10th Edition, 5135, p. 761, 1983.

Affiliated with

Also associated with

Rating

Color control & stability in acetaminophen does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Color control & stability in acetaminophen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color control & stability in acetaminophen will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1150256