Description
Alpha-Ketoglutaric acid (AKG), also called 2-Ketoglutaric acid (CAS 328-50-7), is a Krebs-cycle organic acid widely used by dietary supplement brands and contract manufacturers in energy, recovery and healthy-aging formulations. KEEP INGREDIENTS supplies AKG bulk powder standardized to ≥99% assay by HPLC, produced through a clean biological fermentation process — free of animal-derived, cell-culture or GMO materials.
Our AKG raw material is a white, free-flowing crystalline powder (80–120 mesh) with a low impurity profile, making it suitable for hard capsules, stick-pack powders, effervescent tablets and functional beverage premixes. Every order ships with a lot-specific AKG COA tested to USP 34 standards.
Key Specifications
Product Name: 2-Ketoglutaric Acid (AKG / Alpha-Ketoglutaric Acid)
CAS Number：328-50-7
Molecular Formula: C₅H₆O₅
Assay (Purity): ≥ 99.0% (HPLC, USP 34)
Appearance: White crystalline powder
Particle Size: 80–120 mesh
Loss on Drying: ≤ 5% (typical 0.35%)
Total Heavy Metals: ≤ 10 ppm (USP <231>)
Pb / As / Cd / Hg: ≤ 0.5 / 2.0 / 2.0 / 1.0 ppm (ICP-MS / AAS)
Total Plate Count: ≤ 1,000 CFU/g
Source: Biological fermentation (vegan, BSE/TSE-free)
Shelf Life: 24 months when sealed
Packing: Food-grade PE bag + aluminum foil bag, 25 kg / fiber drum
What Is AKG Used For?
AKG is a naturally occurring α-keto acid that sits at the crossroads of carbohydrate, amino acid and energy metabolism. As a dietary supplement ingredient, it is commonly formulated into:
• Energy & mitochondrial support products • Sports nutrition & post-workout recovery powders and capsules • Healthy-aging / longevity nutraceuticals • Amino-acid blends paired with creatine, L-arginine or L-glutamine
Our fermentation-derived AKG powder avoids animal-source variability and delivers consistent batch-to-batch quality that synthetic routes often struggle to match.
Quality & COA
Every drum of our AKG bulk powder is tested in-house and by third-party labs against USP 34 reference. A typical lot profile:
• Reference Batch No. 260403 — Assay: 99.2% (HPLC)
• Loss on drying: 0.35%
· Ash: 0.45%
• Pb < 0.5 ppm
· As < 0.05 ppm
· Cd < 0.01 ppm
· Hg < 0.005 ppm
• E. coli, Salmonella, Staphylococcus: Negative
COA shown is for reference only; a fresh lot-specific Certificate of Analysis accompanies every shipment.
On request we supply COA, MSDS, TDS, ISO22000 / GMP / HACCP documentation, vegan & GMO-free declarations, and origin certificates for customs clearance.
Why Source AKG from KEEP INGREDIENTS
• Fermented, not synthetic — 100% vegan, GMO-free, BSE/TSE-free, non-irradiated
• Pharmacopoeia-grade quality — HPLC purity ≥99%, USP-tested heavy metals and micro limits
• Bulk-flexible — from trial drums (25 kg) to full FCL container programs
• Formulation-ready — 80–120 mesh flow property suited for encapsulation and stick-pack filling
• Export-ready — shipped from Xi'an, China to US, EU, UK, Southeast Asia and Middle East with full customs documents
Packaging & Storage
Inner: food-grade polyethylene bag. Outer: aluminum-foil bag sealed inside a fiber drum, 25 kg net per drum. Store in a well-closed container, away from moisture and direct sunlight.
Shelf life: 24 months from manufacture when sealed and stored properly.
FAQ
Q1. What is Alpha-Ketoglutaric acid (AKG) used for in supplements?
AKG is a Krebs-cycle organic acid used as a dietary supplement ingredient in energy, sports-recovery and healthy-aging formulations, typically filled into hard capsules or powder sticks.
Q2. What is the CAS number and molecular formula of your AKG?
Our 2-Ketoglutaric acid has CAS No. 328-50-7 and molecular formula C₅H₆O₅.
Q3. What is the HPLC purity of your AKG bulk powder?
Assay is ≥99.0% by HPLC (USP 34 reference); reference batch 260403 tested at 99.2%.
Q4. Is your AKG powder vegan, GMO-free and gluten-free?
Yes. It is produced by biological fermentation and is vegan, vegetarian, GMO-free, BSE/TSE-free, gluten-free and non-irradiated, with no major allergens or cross-contamination.
Q5. What is the MOQ and sample policy?
MOQ is 25 kg (one drum). Free samples of 10–50 g are available for quality evaluation, freight collect.
Q6. How is AKG powder packed and stored?
Packed in a food-grade PE bag inside an aluminum-foil bag, 25 kg per fiber drum. Store sealed, away from moisture and direct sunlight; shelf life 24 months.
Q7. Can you provide an AKG COA and export compliance documents?
Yes. Every lot ships with a lot-specific AKG COA, plus MSDS, TDS, vegan/GMO-free statements, and origin/health certificates for customs.
Q8. What is the lead time for wholesale AKG orders?
Stocked drums ship within 7–15 working days after deposit; FCL and custom-packaging orders typically take 15–25 days, with sea or air freight to US, EU and global destinations.
