21 C.F.R. § 169.181 : Food and Drugs — FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES — FOOD FOR HUMAN CONSUMPTION — FOOD DRESSINGS AND FLAVORINGS — REQUIREMENTS FOR SPECIFIC STANDARDIZED FOOD DRESSINGS AND FLAVORINGS — Vanilla-vanillin flavoring

(a) Vanilla-vanillin flavoring conforms to the definition and standard of identity and is subject to any requirement for label statement of ingredients prescribed for vanilla-vanillin extract by §169.180, except that its content of ethyl alcohol is less than 35 percent by volume.
(b) The specified name of the food is "Vanilla-vanillin flavoring _-fold" or "_-fold vanilla-vanillin flavoring", followed immediately by the statement "contains vanillin, an artificial flavor (or flavoring)". The blank in the name is filled in with the whole number (disregarding fractions) expressing the sum of the number of units of vanilla constituent plus the number of ounces of added vanillin per gallon of the article. However, if the strength of the article is less than 2-fold, the term "_-fold" is omitted from the name.

21 C.F.R. § 169.181

42 FR 14479, 3/15/1977, as amended at 58 FR 2887, 1/6/1993