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Pigments & Colorants

Riboflavin

CAS: 83-88-5

Overview

Riboflavin ( CAS 83-88-5 ), also known as E101(i) in food applications, is a water-soluble B-vitamin used across food, pharmaceutical, and cosmetic manufacturing. It functions as both a nutritional supplement and a natural yellow colorant.

This dual-purpose ingredient provides formulators with a versatile raw material for various industrial applications. In food and beverage production, it is used to fortify products such as breakfast cereals and infant formula.

It is also commonly found in dairy alternatives and energy drinks to meet nutritional labeling requirements. As a colorant, it delivers a stable yellow-to-orange hue in confectionery, sauces, and processed foods.

Pharmaceutical manufacturers incorporate it into multivitamin tablets, B-complex capsules, and parenteral nutrition solutions. In these applications, it serves as an active nutritional ingredient for human health.

In cosmetics, it is used in face masks, serums, and skin-conditioning formulations. Its antioxidant activity supports product positioning in the growing nutricosmetics and wellness segments of the beauty market.

The material is supplied as a fine crystalline yellow-orange powder. Standard grades include USP , BP , Ph. Eur. , and food-grade specifications to ensure high purity and safety for all consumers.

The FCC grade is available for food and dietary supplement applications requiring strict compliance. Feed-grade material is also commercially available for premix and animal nutrition use in agriculture.

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Physical Properties

Melting Point278-279 °C (decomp)
Boiling Point504.93°C (rough estimate)
Density1.2112 (rough estimate)
Flash Point9°C
AppearanceYellow to orange/yellow crystalline powd
ColorYellow to orange
OdorSlight odour
FormPowder
Water Solubility0.07 g/L (20 ºC)
Refractive Index-135 ° (C=0.5, JP Method)
pH5.5-7.2 (0.07g/l, H2O, 20°C)
Log P-2.009 (est)

Trade & Regulatory

HS Code29362300
UN Number1230
Packing GroupII
Storage Class11 - Combustible Solids
WGK (Germany)1

Other Names

Vitasan B2 | Vitamin G | Vitamin Bi | Vitamin B2 | San Yellow B | Russupteridine yellow III | Ribovel | Ribotone | E101(i)

Related Products

Chemical Properties

CAS Number
83-88-5
EC Number
201-507-1
Mol. Weight
376.4
HS Code
29362300

Industries

Documentation