Oops! It appears that you have disabled your Javascript. In order for you to see this page as it is meant to appear, we ask that you please re-enable your Javascript!

Inositol USP/NF


1,2,3,4,5,6-Hexahydroxycyclohexane, i-Inositol, meso-Inositol, Inositol,

Technical Data

CAS Number: 87-89-8
Molecular Formula: C6H12O6
Molecular Weight: 180.16
Beilstein Registry Number: 1907329
EC Number: 201-781-2

FabriChem Specifications

AppearanceFine white crystals or white crystalline powder
(A & B)
Meets Requirements
Melting Range224.0°C - 227.0°C
WaterNMT 0.5%
Residue on IgnitionNMT 0.1%
ChlorideNMT 0.005%
SulfateNMT 0.006%
CalciumPasses Test
Heavy Metals )as Pb)NMT 0.001%
LeadNMT 0.5 ppm
ArsenicNMT 3 ppm
MercuryNMT 0.1 ppm
IronNMT 5 ppm
BariumPasses Test
of the Solution
Meets Requirements
ConductivityNMT 20 μ S.cm-1
Related Compounds of
any Individual Impurity
NMT 0.3%
Related Compounds:
Total Impurities
NMT 1.0%
Assay97.0% to 102.0%
Total Plate CountNMT 1,000 CFU/g
Yeast & MoldNMT 100 CFU/g
E. ColiNegative
Colon BacillusNegative
SalmonellaNegative / 25 g

Molecular Structure



Inositol or cyclohexane-1,2,3,4,5,6-hexol is a chemical compound, a six-fold alcohol (polyol) of cyclohexane. It exists in nine possible stereoisomers, of which the most prominent form, widely occurring in nature, is cis-1,2,3,5-trans-4,6-cyclohexanehexol, or myo-inositol. Inositol is a carbohydrate, though not a classical sugar. Its taste has been assayed at half the sweetness of table sugar (sucrose). Myo-Inositol plays an important role as the structural basis for a number of secondary messengers in eukaryotic cells, the various inositol phosphates. In addition, inositol serves as an important component of the structural lipids phosphatidylinositol (PI) and its various phosphates, the phosphatidylinositol phosphate (PIP) lipids.