Is Nitrous Acid vegetarian?
Nitrous Acid
Nitrous Acid is a weak, monoprotic acid known only in solution, in the gas phase, and as nitrite salts. It is used industrially to make diazonium salts from amines, which serve as reagents in azo coupling reactions to produce azo dyes.
| INCI name | Nitrous Acid |
|---|---|
| CAS number | 7782-77-6 |
| EC number | 231-963-7 |
| CosIng ID | 98470 |
| Last reviewed | 9 July 2026 |
An ingredient is considered vegetarian if it avoids components derived from killing an animal.
Classifications are made to the best of our knowledge based on available scientific and regulatory sources. We cannot guarantee the accuracy of every entry, errors in the sources we draw from can always occur. This tool also cannot account for cross-contamination, which depends entirely on individual suppliers and producers. If you believe a classification is incorrect, you can report an issue.