Description

Calcium Bis[(R)-2-Hydroxy-4-(Methylthio)Butyrate] is a high-purity, organically-bound calcium source derived from the hydroxyl analogue of methionine. This compound matters for its superior bioavailability and stability compared to inorganic calcium salts, offering a highly efficient nutritional supplement. It is primarily needed by manufacturers in the animal feed, pharmaceutical, and nutraceutical industries seeking to enhance calcium and methionine delivery in a single, synergistic molecule.

Application

• Animal Feed Additive: As a source of bioavailable calcium and the essential amino acid methionine for poultry, swine, and aquaculture to support skeletal development, eggshell quality, and overall growth performance.
• Pharmaceutical Intermediates: Used in the synthesis of specialized pharmaceutical compounds where the (R)-enantiomer configuration and calcium chelation are critical for biological activity.
• Dietary Supplements: Incorporated into human and veterinary nutritional products for bone health, leveraging its enhanced absorption profile.
• Veterinary Medicine: Formulated into injectable or oral solutions for calcium and methionine supplementation in livestock and companion animals.
• Research & Development: Serves as a key reagent in biochemical and nutritional studies investigating calcium metabolism and amino acid utilization.

Basic Information

Product Name	Calcium Bis[(R)-2-Hydroxy-4-(Methylthio)Butyrate]
CAS No.	71597-86-9
Molecular Formula	C10H18CaO6S2
Molecular Weight	338.44 g/mol
Synonyms	Calcium (R)-2-Hydroxy-4-(Methylthio)Butyrate; Calcium HMTBA; Calcium 2-Hydroxy-4-(Methylthio)Butanoate; Calcium Methionine Hydroxy Analogue; MHA-Ca; (R)-HMB-Ca; Calcium salt of (R)-2-Hydroxy-4-(Methylthio)Butyric Acid; Feed-grade Calcium Methionine Hydroxy Analogue Chelate
EINECS	Contact for details

Quality Control

Our Calcium Bis[(R)-2-Hydroxy-4-(Methylthio)Butyrate] is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure compliance with relevant feed and nutritional grade specifications. Key parameters such as assay, enantiomeric purity, and heavy metal content are verified. Certificates of Analysis (COA) documenting full specifications are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can lead to caking or degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Enantiomeric Purity (Chiral HPLC)	≥ 99.0% (R)-isomer
Calcium Content (Titration)	11.5 - 12.5 %
Loss on Drying	≤ 1.0%
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1%

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