D-Pinitol
Description
D-Pinitol Powder – Premium Grade Natural Inositol Ingredient for Nutraceutical & Functional Food Applications
Xi'an Le-Nutra Ingredients Inc is specialised in the manufacturing of high purity D-Pinitol content with ≥98% HPLC validated, produced under our 60,000㎡ GMP certified facility. Our yearly production capacity is up to 3000tons with 14+ years extraction experience and experienced quality control staff. This white crystalline powder is highly soluble in water, and thermally stable up to 225°C, allowing for a range of formulation requirements. We deliver consistent quality with 98% on-time delivery performance and 30-day safety stock availability and thorough documentation with FDA, ISO, Kosher and COA certificates.
What Is D-Pinitol and How Does It Work?
The product is technically known as 3-O-methyl-D-chiro-inositol. It is a naturally occurring cyclitol found mostly in legumes such as Carob and soybeans. This bioactive molecule acts like insulin in the human body by stimulating the translocation of GLUT4, therefore increasing the uptake of glucose into the cells.
Unlike normal inositol forms, the product offers better cell penetration and functions as a secondary messenger in the insulin signalling system. This process is particularly beneficial in conditions when the physiological conversion of myo-inositol to D-chiro-inositol is hindered.
The chemical helps to satisfy basic wellness needs by promoting healthy glucose metabolism and keeping internal physiological conditions stable. It has a chemical formula C7H14O6 and a molecular weight of 194.18 g/mol which gives it a remarkable stability profile in a wide pH range of 3.0 to 7.0 .

Technical Specifications and Quality Standards
All the demanding quality parameters set on an international level are tested for the product powder. Each batch of production is strictly checked and verified to meet the need of regulatory authorities worldwide.
| Item | Specification |
|---|---|
| Product Name | D-Pinitol Powder |
| CAS Number | 10310-32-4 |
| Active Ingredient | D-Pinitol ≥98% HPLC |
| Appearance | White free-flowing crystalline powder |
| Source | Natural plant extraction |
| Solubility | Easily soluble in water, soluble in methanol |
| Loss on Drying | ≤ 0.5% |
| Total Ash | ≤ 0.1% |
| Heavy Metals | Pb <10 ppm, As <2 ppm, Cd <1 ppm, Hg <0.1 ppm |
| Microbial Limits | TPC ≤1000 CFU/g; Yeast & Mold ≤100 CFU/g |
| Pathogens | E. coli & Salmonella: Negative |
| Shelf Life | 24 months (cool, dry, dark storage) |
The optical rotation testing ([α]D20 +64° to +67°) distinguishes the bioactive D-isomer from inactive variants. HPTLC fingerprinting confirms authentic carob or soy origin, preventing substitution with synthetic alternatives that lack equivalent biological activity.
Core Manufacturing Advantages
Our manufacturing plant has six multipurpose extraction lines with modern purifying technologies. This infrastructure allows for tight control of crystallisation parameters, resulting in a constant particle size distribution and excellent powder flowability.
The large scale production capability offers flexible order fulfilment from laboratory scale samples to bulk commercial quantities. Monitoring systems continuously measure key process parameters, including temperature, pressure and solvent ratios, during the extraction cycles.
Our own R&D laboratory uses HPLC-ELSD assay methods for concentration verification and ICP-MS tests for heavy metal profiling. The GC-HS analysis reveals that the extraction solvents are within the USP <467> limits and the accelerated stability experiments confirm the 24-month shelf life under the stated storage circumstances.
All batches of D-Pinitol are fully documented with a Certificate of Analysis, Technical Data Sheet, Material Safety Data Sheet and Method of Analysis. Third-party testing support provides transparency to overseas customers that need independent verification.

Application Scenarios in Product Development
Its improved stability and solubility render the component applicable in a wide range of formulations. You can use it in carbohydrate metabolism support capsules aimed at wellness-minded consumers looking for natural metabolic balance.
It is compatible with other vitamins and minerals and benefits women's daily balanced nutrition pills. The ultra-low impurity level ensures no interactions that could compromise formula stability or shelf life.
The multi-inositol compound solid beverages are based on its fast dissolving property and the fact that it does not precipitate in aqueous solutions. Neutral flavour profile facilitates integration without influencing flavour systems and other masking agents.
It utilises its heat stability in processing for general wellness functional meals. It can be added to baked goods, protein bars, fortified cereals and the chemical will remain active at typical food manufacturing temperatures.
Quality Assurance and Regulatory Compliance
Our quality control system is GMP, ISO and FDA compliant and provides full traceability of batches from raw material purchase to final packing. Held and documented checkpoints on each level of production with hold-release protocols.
The microbiological compliance program consists of total plate count verification, yeast and mould enumeration, and pathogen screening for E. coli and Salmonella. Monitoring the production environment for the management of contamination during industrial activities.
Kosher certification signifies compliance with the dietary needs of certain market sectors. We ship with full analytical testing packages to provide overseas buyers the transparency they want for customs clearance and regulatory filings.
Packages of stability data are used to enhance formulation development by documenting performance under various storage circumstances. The technical support accelerates your product development schedule and minimises reformulation hazards.

FAQ
Q: How does the product differ from D-chiro-inositol?
A: The product is the 3-O-methyl ether of DCI having increased oral bioavailability. The body converts it to DCI for insulin-mimetic activity and has better cellular absorption than ordinary inositol forms.
Q: Stability in high acid beverages?
A: Yes, the substance is highly stable in the pH range of 3.0-7.0 which makes it appropriate for functional drinks, sports beverages and fortified juices with no loss of action.
Q: Does it induce low blood sugar?
A: No , it only helps to transfer glucose when blood sugar is high . It acts as a metabolic regulator , not as an abrupt drop that could cause side effects .
Q: Is it suitable for vegan formulations?
A: Of course. Our product is made from plant-based Carob sources and is suitable for vegan, Halal and Kosher diets catering to various dietary preference requirements.
Q: How long is it?
A: The substance has a shelf life of 24-36 months when stored under appropriate conditions (cool, dry place away from light) as determined by accelerated stability testing techniques.

Partner With a Trusted Ingredient Supplier
Ready to explore how premium-grade D-Pinitol can enhance your product portfolio? Contact our team at enquiry@lenutra.com for technical specifications, sample requests, or customized formulation support.
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