Inositol (myo-Inositol) | CAS 87-89-8 | Cyclitol Sugar Alcohol (Research Use Only) | Knowlux

Product Description

Inositol, CAS 87-89-8, is a naturally occurring carbocyclic sugar alcohol (cyclitol) supplied by Knowlux for laboratory research use. It is also known as myo-inositol, meso-inositol, or cyclohexane-1,2,3,4,5,6-hexol. The molecule is a six-carbon ring bearing one hydroxyl group on each carbon, and myo-inositol is the most abundant and physiologically relevant of its nine possible stereoisomers. The molecular formula is C6H12O6 and the molecular weight is 180.16 g/mol. Each lot is released with a lot-specific COA, MSDS and full analytical traceability.

Stereoisomer and form clarification: CAS 87-89-8 describes the myo-inositol stereoisomer, which is the form most widely traded and the form supplied by Knowlux. Other stereoisomers (scyllo-, D-chiro-, L-chiro-, neo-, allo-, muco-, epi-, and cis-inositol) are distinct entities with different CAS numbers and biological roles. Additionally, inositol can exist in anhydrous and dihydrate forms; the dihydrate loses water at 100 C, while the anhydrous form is non-hygroscopic. Knowlux declares the form and water content on each COA. Commercial listings describe inositol as a supplement for polycystic ovary syndrome (PCOS) or hair growth; those designations attach to supplement markets and do not apply to, and are not represented by, this research-grade lot.

Product Parameters

Product Details

1. Overview

myo-Inositol is a carbocyclic polyol that serves as a structural component of phospholipid membranes and as a precursor to inositol phosphate second messengers. Its phospholipid derivative, phosphatidylinositol, is cleaved by phospholipase C to generate inositol phosphates and diacylglycerol, both of which are central to cellular signalling. In research settings, myo-inositol is studied as a metabolite in phosphoinositide signalling, a cell culture supplement, and a model compound for cyclitol biochemistry. Knowlux supplies myo-inositol as a research-grade material for laboratory and analytical use; this supply is not intended for human consumption and does not constitute a finished supplement or drug product.

2. Research Context (Not a Therapeutic Claim)

Published literature describes myo-inositol as a metabolite studied in in vitro and in vivo research models. Its primary biochemical role is as a precursor to phosphatidylinositol and inositol phosphates, which regulate membrane trafficking, ion channel activity, and intracellular calcium release. In cell culture applications, myo-inositol is used as a growth factor and media supplement, with tested compatibility across CHO, L929, and Vero cell lines. These descriptions are derived from published research and are provided for scientific reference only. Knowlux makes no claims regarding the efficacy, safety, or suitability of this product for any human application. Promotion of inositol for PCOS treatment, hair growth, anxiety reduction, or any health benefit is not supported by Knowlux and is inconsistent with research-use-only supply.

3. Quality Control

The specification failures that matter most in myo-inositol supply are related to residual solvents from extraction or synthesis, heavy metal content, and the presence of other stereoisomers or related polyols. A nominal HPLC purity can conceal stereoisomeric or epimeric impurities; buyers should require a specific chromatographic assay with a declared limit for related substances, not a generic purity figure. Full COA, MSDS, and lot-specific chromatograms are issued with each shipment.

4. Applications

• Reference standard for cyclitol and phosphoinositide analytical method development

• In vitro phosphoinositide signalling and inositol phosphate research models

• Cell culture media supplementation (tested with CHO, L929, Vero)

• Osmolyte and compatible solute studies

• LC-MS and biochemical assay calibrators

5. Packaging, Storage & Shipping

myo-Inositol is stable under recommended storage conditions and is non-hygroscopic in the anhydrous form. Primary containment: amber glass vial or high-barrier aluminium pouch, sealed with tamper-evident closure. Secondary packaging: light-protected carton with desiccant. Ambient or cold-chain shipping with temperature logger where required. COA, MSDS, packing list and certificate of origin issued with each shipment.

6. Documentation Support

Per lot: COA, MSDS, certificate of origin, residual solvent statement, heavy metal statement, loss on drying report. Specification summaries and audit support available on a project basis.

About Knowlux

Knowlux Biotechnology is a GMP-oriented manufacturer and supplier of peptides, APIs and fine-chemical research compounds, operating from Hubei, China. We serve research groups, CDMOs and distributors in more than 40 countries, and support contract synthesis, custom packaging and technical documentation requests.

Compliance Statement

This product is supplied for laboratory research use only. It is not for human or animal administration, not for diagnostic or therapeutic use, not for retail sale, and not for personal use. Inositol is authorised as a food additive and nutritional supplement ingredient in many jurisdictions, including China (GB 14880) and the EU; those regulatory positions attach to compliant food- and supplement-grade supply chains and do not apply to, and are not represented by, this research-grade lot. Inositol carries a German water hazard class of WGK 3; appropriate disposal precautions should be observed. Research context statements are for scientific reference only and do not constitute medical advice, promotional claims, or dosing guidance.