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English Name: Nicotinamide Riboside Hydrogen Malate (NRHM)
CAS No.: 2415659-01-5
Molecular Formula: C15H20N2O10
Molecular Weight: 388.33
Product Grades: Chemical Grade, Food Grade, Research Grade (Customizable as required)
Core Features: A stable crystalline compound formed by salt-type design of NR and malic acid, with stability and bioavailability far superior to ordinary NR chloride, no obvious hygroscopicity, suitable for multi-scenario applications
1. Product Overview
Nicotinamide Riboside Hydrogen Malate (NRHM) is a new type of crystalline compound formed by precise salt-type design of Nicotinamide Riboside (NR) and malic acid. It is a high-end active derivative of Vitamin B3 and an efficient precursor of NAD⁺ (Nicotinamide Adenine Dinucleotide). Essentially, it combines NR and malic acid through scientific proportioning. After entering the human body, it can quickly dissociate into two fully studied basic molecules, which participate in physiological metabolism respectively to achieve a functional synergy effect. At the same time, it solves the industry pain points of ordinary NR chloride, such as easy degradation, strong hygroscopicity and poor stability. Relying on the independently developed exclusive enzymatic synthesis process, Maintain Biotech has broken through the bottleneck of crystal form regulation technology. The produced NRHM products have the core advantages of high purity, low impurities, environmental friendliness, outstanding stability and high bioavailability. They are widely used in high-end fields such as dietary supplements, pharmaceutical intermediates and biological research, and are the upgraded choice of NAD⁺ precursor raw materials, demonstrating the technical strength and application value of core raw materials in high-end biochemical industry.
2.Core Product Efficacy
The core efficacy of Nicotinamide Riboside Hydrogen Malate (NRHM) focuses on the precise regulation of NAD⁺ levels. It combines the core physiological activity of NR and the metabolic auxiliary effect of malic acid. Compared with ordinary NR products, it has stronger stability, higher absorption efficiency, prominent safety and wider application scenarios. The details are as follows:
3.Core Process Advantages (Maintain’s Exclusive Enzymatic Crystal Form Regulation Technology)
There are three main production methods for NRHM. The enzymatic synthesis combined with crystal form regulation process independently developed by Maintain Biotech breaks through the bottleneck of traditional processes and has more advantages compared with ordinary NRHM production technologies. The details are as follows:
(1) Traditional Chemical Synthesis Method
It is prepared by chemical condensation and salification reactions using nicotinamide, ribose derivatives and malic acid as raw materials, which requires a large amount of organic solvents and strong acid-base catalysts. The disadvantages are obvious: product purity ≤95%, high impurities, easy to produce harmful residues, unstable crystal form, large emissions of three wastes, harsh reaction conditions, high cost and poor batch stability, which cannot be adapted to high-end application scenarios.
(2) Microbial Fermentation Method
NR is synthesized through microbial metabolism, and then salified with malic acid, which does not require a large amount of organic solvents, but has obvious limitations: low product concentration, yield ≤60%, long fermentation cycle (7-10 days), poor crystal form controllability, large purity fluctuation, need for additional refining, difficulty in large-scale industrial production, and insufficient product stability.
(3) Maintain’s Exclusive Enzymatic Crystal Form Regulation Process (Recommended)
Adopting the exclusive dual-enzyme one-pot method + precise crystal form regulation technology, using nicotinamide, purine nucleosides and malic acid as substrates, in a mild reaction system of normal temperature and pressure and full aqueous phase, NRHM with specific crystal structure is synthesized by strictly regulating temperature, cooling rate and crystallization conditions. Compared with traditional processes, it has irreplaceable core advantages and can realize multi-dimensional customized production:
4.Core Product Parameters
| Parameter Name | Chemical Grade | Food Grade | Research Grade |
| Purity (HPLC) | ≥98.0% | ≥99.0% | ≥99.5% |
| Appearance | White to pale yellow crystalline powder, no caking | White crystalline powder, odorless, no caking | White needle-like crystals, no impurities, no moisture absorption |
| Powder Crystal Form | Conventional crystal form, customizable | Conventional crystal form, customizable (α/β configuration) | High-purity β configuration, customizable special crystal form |
| Bulk Density | 0.45-0.65g/cm³ (Customizable) | 0.55-0.75g/cm³ (Customizable) | 0.60-0.80g/cm³ (Customizable) |
| Particle Size | 80-120 mesh (Customizable 20-200 mesh) | 100-150 mesh (Customizable 40-200 mesh) | 120-180 mesh (Customizable 60-200 mesh) |
| Moisture | ≤4.0% | ≤2.5% | ≤1.5% |
| Heavy Metals | ≤10ppm | ≤5ppm | ≤1ppm |
| Microbial Limit | Complies with chemical grade standards | Total bacterial count ≤1000cfu/g, mold and yeast ≤100cfu/g | Sterile (Customizable as required) |
| Storage Conditions | Sealed and stored at -20℃, avoid light and moisture | Sealed and stored at -20℃, avoid light and moisture | Sealed and vacuum stored at -20℃ |
| Shelf Life | 12 months (sealed storage) | 24 months (sealed storage) | 36 months (vacuum sealed storage) |
5.Core Application Areas
Relying on the core advantages of high purity, high stability and high bioavailability, combined with the functional synergy of NR and malic acid, Maintain Biotech’s NRHM is widely used in many high-end fields, accurately meeting the customized needs of different scenarios, and has more application advantages compared with ordinary NR products: