Name: Quercetin Dihydrate Powder 95%
SKU: N/A

Quercetin Dihydrate Powder 95% | Pharmaceutical-Grade Plant Extract

HPLC-Verified 95% Purity | NSF GMP Certified | Ships from 4 U.S. Warehouses

The Quercetin Dihydrate Powder 95% from Sophora japonica flower buds is pharmaceutical-grade and is sold by Earth Made Nutritions Inc. Since 2008, we've been giving supplement makers, functional food brands, and animal nutrition companies across North America tested, consistent ingredients.

What Sets Our Quercetin Apart:

· 95% minimum purity verified by HPLC (every batch)

· Authentic dihydrate form with 9-12% stabilizing moisture

· Heavy metals <10 ppm, tested per USP <232>

· Ships within 2 business days from U.S. stock

· Full certificate portfolio: NSF GMP, FSSC22000, Kosher, Halal, ISO, Organic

Quercetin Dihydrate Powder 95%

Product Specifications

Parameter	Specification
Latin Name	Sophora japonica L.
Appearance	Fine yellow to greenish-yellow powder
Purity	≥95% (HPLC)
Used Part	Flower buds
Molecular Weight	338.27 g/mol
CAS Number	6151-25-3
Moisture Content	9.0% - 12.0%
Particle Size	95% pass 80 mesh
Package	25kg/drum
MOQ	25kg
Lead Time	In stock, 2nd day pickup

Why Formulators Choose This Grade?

Consistent Bioactivity

Sophora japonica extracted alone removes seasonal changes in fruit-derived alternatives. Formulation findings are consistent lot-to-lot.

Formulation-Ready

Dihydrate crystals in Quercetin Dihydrate Powder 95% withstand oxidative degradation better than amorphous powders. Products with 18+ month shelf life need this steadiness.

Available formats:

· Standard grade (80 mesh)

· Micronized (d90 <10 microns) for improved suspension

· Organic certified option

Clean Label Compatible

· Plant-based, non-GMO

· Suitable for vegetarian/vegan products

· Controlled impurities: Kaempferol + Isorhamnetin <2.0% total

· No synthetic additives

R&D and Quality

Common Applications

Dietary Supplements

· Immune support capsules/tablets

· Antioxidant complex formulas

· Seasonal wellness products

· Often paired with Bromelain for absorption

Functional Foods & Beverages

· Immune support shots

· Powdered drink mixes

· Protein powders with antioxidant positioning

· Note: Requires solubilization technology for clear beverages

Animal Nutrition

· Feed antioxidant premixes

· Livestock wellness support

· Withstands standard pelleting temperatures

Applications and Uses

Quality Testing (Every Batch)

Identity & Purity

· HPLC fingerprinting vs. certified reference standards

· Assay calculated on anhydrous basis

· Retention time verification

Safety Testing

· Heavy metals: USP <232> protocol (Pb, Cd, As, Hg)

· Residual solvents: GC Headspace per USP <467>

· Microbiology: USP <61>/<62> standards

Documentation Provided

· Certificate of Analysis (CoA)

· Country of Origin Certificate

· Allergen Statement

· BSE/TSE Statement

· GMO-Free Declaration

Certification

Supply Chain Benefits

Fast U.S. Delivery

Four strategically located warehouses enable:

· 2-business-day shipping on in-stock orders

· Lower freight costs

· Extended effective shelf life

Flexible Ordering

· 25 kg minimum order

· Free samples available for testing

· Buffer inventory for JIT manufacturing

Technical Support

Our application specialists help with:

· Excipient selection for flowability

· Solubilization strategies

· Dosage calculations (accounting for dihydrate water content)

· Stability testing guidance

Storehouse

FAQ

Q: Why pick dihydrate over anhydrous quercetin?

A: Standard botanical extract is dihydrate (95% purity). It's cheaper and more stable than anhydrous (98%+ purity) for most uses. Anhydrous is only needed for moisture-sensitive compositions.

Q: How do I calculate dihydrate dosing?

A: Adjust for ~12% water content. For a 500 mg quercetin label claim, use 560-590 mg powder per dosage. Always check your lot's CoA.

Q: What causes batch colour variations?

A: Bright yellow to greenish-yellow colours result from harvest season changes. This is normal. We reject brownish (oxidised) batches.

Q: Water solubility issues: what to do?

A: Lipophilic quercetin. To utilise water-based products:

Cyclodextrins are

Encapsulating liposomes

Use suspension agents for opaque drinks.

Powder dissolves in ethanol or alkaline solutions.

Q: Which storage conditions are best?

A: Store dark, cold, and dry. Quercetin is photosensitive. Double PE-lined drums safeguard contents. Proper storage maximises 2-3 year shelf life.