CAS No.:108347-85-9 NMNH powder as known as educednicotinamide mononucleotide. It is the reduced form of NMN and the oxidized form of NMN. And it raises NAD+ levels faster and has a higher concentration, which is on average 5 times that of NMN.https://www.haozepharm.com/human-pharma-raw-materials/others/nmnh-powder.html