Quality & Compliance

Research Use Only. All compounds are labeled RUO. Not for human or veterinary use. Not evaluated by the FDA for safety or efficacy.

Test	Standard	Threshold	Frequency
HPLC purity	USP <1225> method validation	≥98%	Per batch
Identity (MS)	ESI-MS or MALDI-TOF	±0.1 Da of theoretical MW	Per batch
Endotoxin	USP <85> LAL kinetic-chromogenic	≤0.5 EU/mg	Per batch
Appearance	Visual inspection	White to off-white lyophilized powder; no visible particulates	Per batch
Moisture (KF)	USP <921>	≤6.0%	Per batch
COA publication	Third-party independent lab	Required before lot release	Per lot

• COA library — all lot certificates
• Methods — HPLC, MS, and endotoxin SOPs
• References — peer-reviewed literature index