Sparingly soluble in water, practically insoluble in chloroform, ethanol (95%) and in ether
Solubility (EP, BP)
Sparingly soluble in water, practically insoluble in ethanol (96%)
Solubility (JP)
Sparingly soluble in water
Identification A (USP)
The retention times of the four major peaks of the sample solution corresponds to, those of the standard solution as obtained in the assay
Identification A : (IP)
Produces a precipitate under the condition of Assay
Identification A : Specific optical rotation (BP)
-85.00° to -65.00° (c = 1% in 0.1M HCl at 20°C, dried substance)
Identification A : Protamine peptide A content, HPLC (EP)
13-18%
Identification A : Protamine peptide B content, HPLC (EP)
21-28%
Identification A : Protamine peptide C content, HPLC (EP)
31-38%
Identification A : Protamine peptide D content, HPLC (EP)
19-24%
Identification 1 : (JP)
A vivid red colour develops
Identification B: (USP)
Reactions for sulphate
Identification B : (IP)
An intense red colour is produced
Identification B : (BP)
Protamine sulphate forms a precipitate
Identification B : (EP)
It gives the appropriate response when examined as described in the potency assay
Identification 2 : (JP)
A red purple colour develops
Identification C: Bioidentity: (USP)
Each mg of protamine sulphate neutralizes >= 100 USP Heparin Units on the dried basis
Identification C: (BP)
An intense red colour is produced
Identification C: (EP)
It complies with the tests for sulphate
Identification C: (IP)
A white precipitate is produced
Identification 3 : (JP)
Reactions for sulphates
Identification D (IP)
Reactions for sulfate
Identification D (BP)
A precipitate is formed
Identification E (BP)
Reactions for sulfate
Appearance of solution (EP, BP)
The solution is not more opalescent than reference suspension II (2.2.1) and not more intensely coloured than reference solution BY6 or Y6 (2.2.2, Method II)
Appearance of solution (IP)
The resulting solution is not more opalescent than opalescent standard OS2(2.4.1) and not more intensely coloured than reference solution BY6S6 (2.4.1)
Clarity and colour of solution (JP)
1% solution in water is clear and colourless
pH (1% in water at 25°C) : (JP)
6.50-7.50
Specific rotation (BP, IP)
-85.00° to -65.00° (c = 1% in 0.1M HCl at 20°C, dried substance)
Sulphate (USP, JP)
16 -22% (dried substance)
Sulphate (IP, EP, BP)
16 -24% (dried substance)
Iron (USP, EP, BP)
<= 0.001%
Iron (IP)
<= 0.002%
Light absorption (IP)
<= 0.1 (at 260 to 280nm)
Absorbance (USP, EP, BP, JP)
<= 0.1 (at 260 to 280nm)
Methyl mercury (USP)
<= 0.001%
Mercury (BP, IP)
<= 0.001%
Heavy metals (IP)
<= 0.002%
Loss on drying (USP, EP, BP, JP, IP)
<= 5.0% (at 105°C, 3 hr)
Residual solvent: (USP)
Meets the requirements
Nitrogen, dried substance : (BP, IP)
21.00 - 26.00%
Nitrogen, dried substance : (JP)
22.50 - 25.50%
Related substances : System suitability : Resolution: HPLC (EP)
>= 2.0
Related substances : HPLC (EP)
<= 8.0%
Heparin-binding capacity : System suitability : RSD, sample solution A, B, C : UV (JP)
<= 5.0%
Heparin-binding capacity : System suitability : RSD, Set of A, B, C : UV (JP)
<= 5.0%
Heparin binding capacity : UV : (JP)
min. 100 Units/mg of heparin, dried basis
Assay: Standard deviation : Colorimetry (BP)
<= 5.0%
Assay: Standard deviation of each test solution : UV (IP)
<= 5.0%
Assay: RSD: HPLC (USP)
<= 2.0%
Assay: resolution : HPLC (USP)
>= 2.0
Potency (USP, EP)
min. 100 IU of heparin, dried basis
Chromatographic purity : (USP)
min. 92.00%
Assay (HPLC, dried substance) : (USP, EP)
90.00 - 110.00%
Assay: colorimetry: (BP)
min. 100 IU of heparin, dried basis
Assay: UV: (IP)
min. 100 Units of heparin sodium RS, dried basis
Bacterial endotoxin : (USP, IP)
<= 7.0 USP endotoxin Units/mg
Bacterial endotoxin : (BP)
<= 7.0 IU/mg
Storage and Shelf Life
Storage
Store below 30°C away from bright light.
Shelf life
48 months.
Use
Use before expiry date given on the product label.