Description

Fd And C Red No. 7 is a synthetic organic colorant widely used as a safe and effective pigment. This certified color additive is valued for its vibrant, stable red hue and its compliance with stringent global food and pharmaceutical standards. It is primarily utilized by manufacturers in the food, beverage, cosmetic, and pharmaceutical industries seeking consistent and reliable coloration for their products.

Application

• Coloring agent in food products such as candies, desserts, and beverages.
• Pigment for cosmetics and personal care items including lipsticks, blushes, and soaps.
• Colorant in pharmaceutical tablets, capsules, and coatings for product identification and branding.
• Ingredient in dietary supplements and vitamin preparations.
• Used in the coloration of pet food and animal feed.
• Pigment for certain industrial applications and specialty inks where a non-toxic color is required.

Basic Information

Product Name	Fd And C Red No. 7
CAS No.	69458-81-7
Molecular Formula	C~18~H~14~N~2~O~7~S~2~·2Na
Molecular Weight	496.42 g/mol
Synonyms	FD&C Red No. 7; Food Red 7; CI 15850; E 180; Lithol Rubine B; Lithol Rubine BK; Pigment Red 57:1; Calcium Lithol Rubine; 3-Hydroxy-4-[(4-methyl-2-sulfophenyl)azo]-2-naphthalenecarboxylic Acid Calcium Salt (2:1)
EINECS	274-077-8

Quality Control

Our Fd And C Red No. 7 is manufactured and tested to meet the stringent specifications of major global pharmacopoeias and food regulations, including FCC (Food Chemicals Codex) and EU (E 180) standards. Every batch undergoes rigorous quality testing to ensure compliance with industry standards for identity, purity, and heavy metal limits. Certificates of Analysis (COA) confirming these specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Identification (IR)	Conforms
Assay (HPLC)	≥ 85.0%
Loss on Drying	≤ 15.0%
Water-soluble Matter	≤ 1.5%
Ether-soluble Matter	≤ 0.2%
Subsidiary Colors	Conforms
Heavy Metals (as Pb)	≤ 20 ppm
Arsenic (As)	≤ 3 ppm
Lead (Pb)	≤ 10 ppm
Mercury (Hg)	≤ 1 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.