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VDK® Natural Canthaxanthin

Chemical Name: β,β-Carotene-4,4'-dione (Canthaxanthin)

CAS Number: 514-78-3 Molecular Formula: C40H52O2

Structural Formula:

Core Strengths

Core Strengths
Naturalness Report
Purity Verification
Quality Specifications

Certified 100% Natural:

Supported by authoritative test data, the naturalness index reaches 100% (compared to 0% for traditional chemical synthesis products), better aligning with the market demand for natural ingredients;
High Purity & Safety:

Purity ≥ 99.0%. No harmful impurities detected and low residual impurities, which complies with high-end application standards such as food-grade and feed-grade;

Quality Specifications

Comply with GB standards.

Items	Specification		Methods
Items	Standard Grade	Premium Grade	Methods
Appearance	Purple-red to purplish-brown crystals or crystalline powder	Purple-red to purplish-brown crystals or crystalline powder	Visual
Loss on Drying (%)	≤0.5	≤0.5	GB/T6435-2014
Ash (%)	≤0.2	≤0.2	GB7300.902-2022
Heavy Metals (Total / ppm)	≤10	≤10	GP2020<0821>
Lead (Pb / ppm)	≤10	≤10	GB13080-2018
Total Arsenic (As / ppm)	≤3	≤3	GB13079-2022
Mercury (Hg / ppm)	≤1	≤1	GB13081-2022
Assay
Content (%)	≥96.0	≥99.0	UV
Purity (%)	≥98.0	≥99.0	HPLC
Trans-isomer Proportion (%)	≥96.0	≥98.0	HPLC
Other Carotenoids (%)	≤2	≤1	HPLC
Natural Purity (%)	100	100	AMS
Triphenylphosphine Oxide (TPPO / %)	≤0.01	≤0.01	-
Dichloromethane (%)	<2%	<2%	-
Microbial Limits
Total Plate Count (CFU / g)	≤1000	≤1000	GB 4789.2
Mold & Yeast Count (CFU / g)	≤50	≤50	GB 4789.15
Coliforms (MPN / 100g)	≤30	≤30	GB 4789.3 MPN Method
Salmonella (g)	Not detected /25	Not detected /25	GB 4789.4
Staphylococcus aureus (g)	Not detected /25	Not detected /25	GB 4789.10

Product Content and Packaging Specifications

Product content ≥99%, trans-isomer content ≥99%. Standard Packaging: 1kg/bag, 15kg/bag, 25kg/bag. Inner packaging: PE bag + aluminum foil bag; Outer packaging: cardboard drum. Customized packaging specifications are available upon request.