NAD+ (Nicotinamide Adenine Dinucleotide), Free Acid — Certificate of Analysis

Lot nj500-2026-001 of NAD+ (Nicotinamide Adenine Dinucleotide) assayed at 99.74% peptide purity by RP-HPLC against a ≥95.0% release specification, 4.74 percentage points clear of it. Released 06/12/2026 by ILS Laboratories, ISO/IEC 17025 Accredited. Oxidized pyridine dinucleotide coenzyme central to redox biochemistry, sirtuin signaling, and metabolic pathway research models.

Net peptide content measured 529.22 mg against a 500 mg label — the mass of actual peptide in the vial, as distinct from salts, water and counter-ions. It is reported rather than graded, so it carries no pass/fail.

Full QC panel

Analyte	Specification	Result	Status
Peptide Purity (HPLC)	≥ 95.0%	99.74%	Pass
Identity (HPLC-RTM)	NAD+ Confirmed	Confirmed	Pass
Net Peptide Content	Report Only	529.22 mg	—
Fentanyl Screen	Immunoassay, 50 ng/mL cutoff	Not Detected	Pass

Sterility & endotoxin

Test	Specification	Result	Status
Sterility (PCR)	No Growth	No Growth	Pass
Endotoxin (USP <85>)	Report Result	0.16 EU/mL	Reported

Endotoxin is reported as a measured value rather than graded pass/fail: acceptable limits depend on route and matrix, and no universal threshold applies to research-use material. The laboratory reports the figure and leaves the judgement to you.

Elemental impurities

Panel	Method	Result	Status
Arsenic, cadmium, chromium, lead, mercury	ICP-MS, USP <233>	5 of 5 under limit	Pass

Per-element measurements are on the signed certificate below and in the laboratory's own record.

Reference data

Property	Value
Compound	NAD+ (Nicotinamide Adenine Dinucleotide), Free Acid
Also known as	NAD, NAD+, beta-NAD, beta-Nicotinamide adenine dinucleotide, Diphosphopyridine nucleotide, DPN, Coenzyme I, Nadide
Molecular formula	C21H27N7O14P2
Molecular weight	663.43 g/mol
CAS number	53-84-9
Physical form	Lyophilized powder
Storage	Store desiccated at -20C protected from light and moisture; the compound is hygroscopic and sensitive to heat and aqueous degradation. Aliquot to minimize freeze-thaw cycles. Stable for extended periods when stored as supplied.