Food additive databasecolor, nutrient (fortification)Checked 2026-10-02
Riboflavin 5'-Phosphate Sodium (Sodium Riboflavin Phosphate or Sodium Vitamin B2 Phosphate) リボフラビン5'－リン酸エステルナトリウム（別名リボフラビンリン酸エステルナトリウム又はビタミンB2リン酸エステルナトリウム）
Designated additivePermitted in the EU (E101(ii))
- Purpose
- color, nutrient (fortification)
- On the label
- “着色料（V.B2）” (coloring (vitamin B2)), “着色料（リボフラビン）” (coloring (riboflavin)), “ビタミンB2” (vitamin B2), “V.B2” (vitamin B2)
- Name in the List of Designated Additives
- リボフラビン5'－リン酸エステルナトリウム（別名リボフラビンリン酸エステルナトリウム又はビタミンB2リン酸エステルナトリウム） (No. 448)
In Japan
- The sodium salt of vitamin B2 (riboflavin) bound to phosphoric acid. It is used as a yellow coloring agent and as a fortifier to supplement nutrition. The list of standards for use contains no individual standard for it.
- When used as a coloring agent, the purpose name must be written alongside. The short names are the same as for riboflavin: “リボフラビン” (riboflavin), “ビタミンB2” (vitamin B2), and “V.B2” (vitamin B2). When used for nutritional fortification, labeling is exempt.
Japan's standards for use
There are no standards for use that limit which foods or how much (the general standards for all additives still apply).
This is a summary of the standards for use. See the source list for the exact conditions.
In the EU
- It is on the EU list of food additives (Regulation (EC) No 1333/2008, Annex II) as E101(ii).
Sources
- List of Designated Additives — Japan Food Chemical Research Foundation (Japanese)
- Standards for use and storage of each additive — Japan Food Chemical Research Foundation (Japanese)
- EU food additive database (Japanese translation) — MAFF (Japanese)
- Regulation (EC) No 1333/2008 on food additives — EUR-Lex
- 消費者庁「食品表示基準について」別添 添加物関係（簡略名・用途名併記・一括名・栄養強化の範囲） (Japanese)
- EFSA ANS Panel (2013) Scientific Opinion on the re-evaluation of riboflavin (E 101(i)) and riboflavin-5'-phosphate sodium (E 101(ii)) as food additives (Japanese)
Checked 2026-10-02. Rules and evaluations change over time. This page is a translation of our Japanese page; if they differ, the Japanese page is the reference.
This page lists facts stated in laws and in evaluations by public bodies; it is not a safety verdict. Additives used in Japan are approved by the government, which sets the foods and amounts they can be used in. The ADI is a guide to the amount that is considered safe to take every day over a lifetime.