The names and CAS number for Iron sucrose and Iron saccharate are interchangably used and often there is a confusion.
Appearance: Reddish deep brown colored amorphous Powder, with characteristic odor and hygroscopic in nature.
Solubility: 10 % w/v Easily soluble in water.
Molecular Weight Determination (By GPC):
(a) The Weight Average Mol. Wt. (Mw): 34,000 - 60,000Da
(b) The No. Average Mol. Wt. (Mn): 24,000 Da.
(c) Index (Mw/Mn): Maximum 1.7
Loss On Drying: 5% maximum at 105C.
Tapped Bulk Density: Between 0.65 and 1.2 w/v.
Specific Gravity at 20C for ( 2%w/v Iron Solution): 1.135 TO 1.165
Bacterial Endotoxin Test: 3.7 EU/mg of Iron maximum.
Alkalinity ( 2%w/v Iron Solution): Minimum 0.5 and Minimum 0.8 mI of 0.1 N HCl
pH (2%w/v Iron Solution): 9.5 to 11.1
Chloride: Between 335 ppm and 720 ppm.
Water: 5% maximum.
Osmolarity ( 2%w/v Iron Solution): Minimum 1150 mOsmollLit. Minimum NMT 1350 mOsmollLit.
Absence of low Mol. Wt. Fe(II) & Fe(III) (2% w/v Iron solution): No additional peaks are found in polarogram in the test for limit of Fe (II).
Turbidity (2 %w/v Iron Solution): Turbidity should develop between pH 4.4 - 5.3
Limit of Iron(II): Maximum 1%.
Assay of Sucrose By HPLC (2% w/v Iron solution): 79% to 91%.
Assay of Iron on dry basis: Minimum 4.8 % w/w and Maximum 6.4 % w/w.
Total Bacterial count: Maximum 500 CFU/g
Total Yeast mould: Maximum 100 CFU/g
Bacterial Endotoxin: Maximum 100 CFU/g
Total Fungal count: Maximum 50 CFU/g
E. Coli: Absent.
Salmonella: Absent.
Staphylococcus aureus: Absent.
Pseudomonas aeruginosa: Absent.
Residual Solvent: Maximum 3000 ppm.
Cadmium: Maximum 5 ppm.
Lead: Maximum 5 ppm.
Arsenic: Maximum 3 ppm.
Iron Sucrose Injection is a sterile, colloidal solution of ferric hydroxide in complex with Sucrose in Water for Injection. It contains not less than 95.0 percent and not more than 105.0 percent of the labeled amount of iron. Sodium Hydroxide may be added to adjust the pH. It contains no antimicrobial agent, chelating agent, dextran, gluconate, or other added substances.
Packaging and storage: Preserve in single-dose containers of Type I glass. Store at controlled room temperature. Do not freeze.
Complies with specifications of USP Monograph.
Specifications of Iron Sucrose Injection BP Ph Eur Grade:
Action and use: Treatment of iron-deficiency anaemia.
DEFINITION
Iron Sucrose Injection is a sterile colloidal solution containing a complex of iron(III) hydroxide with sucrose of average molecular weight between 34000 and 60000.
PRODUCTION
Iron Sucrose Injection is produced by a method of manufacture designed to provide an iron-sucrose complex with appropriate iron absorption characteristics. This may be confirmed for routine control purposes by the use of an appropriate combination of physico-chemical tests, subject to the agreement of the competent authority.
A suitable test is carried out to demonstrate (1) the amount of iron(II) present in the injection is not more than 0.4% w/v of the total iron content and (2) there are no low molecular weight complexes in the injection.
The injection complies with the requirements stated under Parenteral Preparations and with the following requirements.
Content of iron, Fe: 95.0 to 105.0% of the stated amount.
Content of sucrose: 90.0 to 110.0% of the stated amount.
IDENTIFICATION
A. To a quantity of the injection containing the equivalent of 20 mg of iron, add 20 mL of water and 5 mL of hydrochloric acid and boil for 5 minutes. Cool, add an excess of 13.5M ammonia and filter. Wash the precipitate with water, dissolve in the minimum volume of 2M hydrochloric acid and add sufficient water to produce 20 mL The resulting solution yields reaction B characteristic of iron salts.
B In the Assay for Sucrose, the retention time of the principal peak in the chromatogram obtained with solution (1) corresponds to that of the principal peak in the chromatogram obtained with solution (2).
C. Complies with the test for Molecular weight determination.
Complies with specification of BP Ph monograph.
