Liquid Indigo Carmine, also known as E132, is a synthetic blue colour used to give foods and beverages a clear, intense blue hue. As a colouring agent, it helps manufacturers achieve consistent shades in products where visual appeal matters, and it is fully miscible in water, making it easy to incorporate into aqueous systems. Common names include Indigotine and FD&C Blue No. 2.
Manufacturers use this liquid colour in beverages, confectionery, dairy, and baked goods. Formulators should note it is a clear, odourless liquid that mixes readily with water, so it can be added directly to recipes. Store it properly to maintain stability, and handle according to good manufacturing practice.
Also known as Indigotine, Liquid Blue Dye, FD&C Blue No. 2
| Appearance | Clear, intense blue liquid |
| Shelf life | 12 months, unopened |
| Storage | Cool, dry place |
| Test | Requirement |
|---|---|
| Assay | >=85% pure dye |
| Heavy metals | <10mg/kg |
| Subsidiary dyes | Per specification |
| Arsenic | <1mg/kg |
QC requirements shown apply to every destination or to the EU. Lot-specific results (assay, moisture, pH, microbiological and heavy-metal testing) vary by production batch and are supplied on the Certificate of Analysis for each shipment.
Yes. Every shipment of Liquid Indigo Carmine comes with a batch-specific Certificate of Analysis. If you need further documents, such as an allergen or GMO declaration or a certificate of origin, tell us at the enquiry stage and we will confirm what is available.
Storage: Cool, dry place. Shelf life: 12 months, unopened.
The certifications associated with Liquid Indigo Carmine include FSSC 22000, CNAS CoA, Exact E-number confirmed BEFORE ordering. Tell us which certification your audit requires and we will confirm what can be provided before you order.
In most cases, yes. Tell us your target volume and application on the contact form and we'll confirm sample availability along with indicative pricing and lead time.