Description

L-Ascorbic Acid, 2-(Dihydrogen Phosphate), Calcium Salt (2:3) is a stable, water-soluble derivative of Vitamin C, offering enhanced oxidative stability compared to ascorbic acid. This compound is a vital ingredient for formulating products requiring a bioavailable and shelf-stable source of Vitamin C activity. It is essential for manufacturers in the nutraceutical, food fortification, cosmetic, and pharmaceutical industries seeking to improve product efficacy and longevity.

Application

• Dietary Supplements & Nutraceuticals: As a stable source of Vitamin C in tablets, capsules, and powdered drink mixes.
• Food & Beverage Fortification: For enriching juices, dairy products, baked goods, and functional foods with added nutritional value.
• Cosmetic & Skincare Formulations: Used in serums, creams, and lotions for its antioxidant and skin-brightening properties.
• Pharmaceutical Intermediates: Serves as a key precursor in the synthesis of other ascorbate derivatives and active pharmaceutical ingredients (APIs).
• Animal Feed Additives: Incorporated into premixes to support animal health, immunity, and growth performance.
• Technical & Industrial Applications: Acts as an antioxidant in certain chemical processes and specialty formulations.

Basic Information

Product Name	L-Ascorbic Acid, 2-(Dihydrogen Phosphate), Calcium Salt (2:3)
CAS No.	113170-56-2
Molecular Formula	C6H7Ca1.5O9P
Molecular Weight	322.17 g/mol (anhydrous basis)
Synonyms	Ascorbyl Calcium Phosphate; Calcium Ascorbyl Phosphate; Calcium L-Ascorbyl-2-Phosphate; Ester-C® (Key Component); Vitamin C Phosphate Calcium Salt; L-Ascorbic Acid 2-Phosphate Calcium Salt; APC; Ascorbic Acid Phosphate Calcium Salt
EINECS	Contact for details

Quality Control

Our L-Ascorbic Acid, 2-(Dihydrogen Phosphate), Calcium Salt (2:3) is produced under strict quality management systems. We offer grades suitable for nutraceutical, food, and cosmetic applications, with testing protocols aligned to industry standards. Each batch is accompanied by a comprehensive Certificate of Analysis (COA) to ensure traceability and compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and easily oxidized; containers must be kept tightly sealed after opening to minimize exposure to air and moisture.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
pH (10% Solution)	6.0 - 8.0
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 10 ppm
Residual Solvents	Meets ICH guidelines
Microbiological Analysis	Meets target application standards

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