Description

Carnosic Acid CAS NO 3650-09-7 is a natural phenolic diterpene compound primarily extracted from rosemary (*Rosmarinus officinalis* L.) and sage. It serves as a highly effective, natural antioxidant and preservative, valued for its ability to inhibit lipid peroxidation and extend product shelf life. This compound is essential for manufacturers in the food, nutraceutical, and cosmetic industries seeking clean-label, plant-based solutions for stability and quality enhancement.

Application

• Natural Food Preservative: Used to prevent oxidation and rancidity in oils, fats, meat products, and snacks, replacing synthetic antioxidants like BHA and BHT.
• Dietary Supplements & Nutraceuticals: Incorporated into formulations for its potential neuroprotective, anti-inflammatory, and metabolic health benefits.
• Cosmetics & Personal Care: Acts as a stabilizing agent in creams, lotions, and serums to protect active ingredients and improve product longevity.
• Animal Feed Additive: Enhances the oxidative stability of feed and may contribute to animal health and performance.
• Pharmaceutical Intermediates: Serves as a starting material or reference standard in pharmaceutical research and development.
• Functional Food Ingredient: Added to health-promoting food and beverage products for its antioxidant properties.

Basic Information

Product Name	Carnosic Acid
CAS No.	3650-09-7
Molecular Formula	C20H28O4
Molecular Weight	332.43 g/mol
Synonyms	Salvin; Picrosalvin; Carnosic acid; (4aR,10aS)-5,6-Dihydroxy-1,1-dimethyl-7-propan-2-yl-2,3,4,9,10,10a-hexahydrophenanthrene-4a-carboxylic acid; Rosemary extract (principal component); 12-O-Methylcarnosic acid (related derivative)
EINECS	222-909-1

Quality Control

Our Carnosic Acid is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets stringent specifications for food, nutraceutical, and cosmetic applications. Certificates of Analysis (COA) detailing purity, heavy metals, residual solvents, and microbiological parameters are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C (refrigerated) or as specified for the specific grade. This product is easily oxidized; for long-term storage, an inert atmosphere (e.g., nitrogen or argon) is recommended to maintain optimal potency and stability. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	Off-white to light brown powder
Identification (HPLC/IR)	Conforms to reference standard
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Total Plate Count	≤ 1000 cfu/g
Yeast & Mold	≤ 100 cfu/g

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