A5251

3-Acetylpyridine adenine dinucleotide

≥85%

• Synonym(s): 3 -Acetyl NAD, APADH, APAD
• Empirical Formula (Hill Notation): C₂₂H₂₈N₆O₁₄P₂
• CAS Number: 86-08-8
• Molecular Weight: 662.44
• NACRES: NA.51
• PubChem Substance ID: 24890959
• UNSPSC Code: 41106305
• MDL number: MFCD00078882
• Assay: ≥85%
• Biological source: Porcine brain
• Form: powder
• Solubility: water: 50 mg/mL, clear, colorless to faintly yellow
• Storage temp.: −20°C

Properties

• biological source: Porcine brain
• Quality Segment: 200
• assay: ≥85%
• form: powder
• mol wt: 662.44 g/mol
• concentration: ≤100% (3-acetylpyridine-adenine dinucleotide)
• color: white to off-white
• solubility: water: 50 mg/mL, clear, colorless to faintly yellow
• λmax: 259-260 nm
• fluorescence: λ_em 15.2- 17.2 (dry basis at pH 7.0)
• storage temp.: −20°C
• SMILES string: CC(=O)c1ccc[n+](c1)[C@@H]2O[C@H](COP([O-])(=O)OP(O)(=O)OC[C@H]3O[C@H]([C@H](O)[C@@H]3O)n4cnc5c(N)ncnc45)[C@@H](O)[C@H]2O
• InChI: 1S/C22H28N6O14P2/c1-10(29)11-3-2-4-27(5-11)21-17(32)15(30)12(40-21)6-38-43(34,35)42-44(36,37)39-7-13-16(31)18(33)22(41-13)28-9-26-14-19(23)24-8-25-20(14)28/h2-5,8-9,12-13,15-18,21-22,30-33H,6-7H2,1H3,(H3-,23,24,25,34,35,36,37)/t12-,13-,15-,16-,17-,18-,21-,22-/m1/s1
• InChI key: KPVQNXLUPNWQHM-RBEMOOQDSA-N

Description

General description

3-Acetylpyridine adenine dinucleotide is a crystalline solid. 3-Acetylpyridine adenine dinucleotide is a prominent electron transporter in various enzymatic activities in which it is alternately oxidized. APAD has a more significant oxidation potential than NAD. NAD analogues, APAD, were electrochemically more effectively reduced than genuine NAD, and the stability of their reduced products was also significantly higher than NADH. In transhydrogenation processes with NADH or NADPH, APAD also operates as a proton acceptor.

Application

Many molecules use 3-Acetylpyridine adenine dinucleotide as a signaling molecule, cofactor, or substrate. Various dehydrogenase processes use APAD instead of NAD as a hydrogen-accepting cofactor. The oxidative phosphorylation can be studied with ADAP. ADAP can also be used as a suitable substrate.

Biochem/physiol Actions

APAD is an NAD analog with higher oxidation potential than NAD. It can substitute for NAD as a hydrogen-accepting cofactor in many dehydrogenase reactions; e.g. lactate dehydrogenase from Toxoplasma, Clonorchis, and Plasmodium, bacterial lipoamide dehydrogenase, as well as mammalian dehydrogenases. It can also act as a proton acceptor in various transhydrogenation reactions with NADH or NADPH.

Other Notes

Analog of NAD

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Codes: H315,H319,H335
• Precautionary Statements: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable