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Colistin Sulphate

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Post Date:

Feb 22,2026

Expiry Date:

Feb 22,2027

Detailed Description:

Cas No. :1264-72-8 Quantity: 1,000Metric Tons
Specs:EP / CP
Payment Method: L/C,D/P,T/T

Colistin Sulphate

Colistin (Polymyxin E) is polymyxin antibiotic isolated from culture fluid of Bacillus polymyxa var colistinus bacteria in soil. Colistin is effective against most Gram-negative bacilli such as E-coil, Serpulina Hyodysenteriae, Salmonella Pullorum and also effective on Pseudomonas aeruginosa.

[Molecular Formula] 2(C₅₂H₉₈N₁₆O₁₃) · 5(H₂SO₄)

[Molecular Weight] 2801.27

[Specifications for EP7]

Test Items	Specifications
Appearance	White or almost white, hygroscopic powder
Specific Rotation	-63º to -73º
Identification	Positive
pH	4.0 to 6.0
Loss on Drying	3.5% max
Sulphate (Dried Basis)	16.0 to 18.0 %
Sulphated Ash	1.0% max
Total Impurities	23.0% max
Assay HPLC (Dried Basis) Sum of E1,E2,E1-I,E1-7MOA,E3	77.0% min
Potency (Dried Basis)	19,000 IU/mg min

[Characteristic]

1) Improve growth performance and conversion rate of livestock & poultry;

2) Inhibit Gram-negative bacteria at growth duration or dormancy state;

3) Prevent bacterial diarrhea & synergistic effects with other antibiotics;

4) No cross tolerance with broad range of antibacterial agent;

5) Little absorbed by intestine and stomach, no residue.

[Recommended dosage] g/ton of complete feed

Target Animals		Colistin Sulphate	Withdrawal Period
Swine	<2 months	2(60MU) – 20(600MU)	7 Days
Swine	2-4 months	2(60MU) – 40(1,200MU)
Poultry	< 70 days	2(60MU) – 20(600MU)
Cattle	< 3 months	5(150MU) – 40(1,200MU)
Note: 1ug of Colistin is equivalent to 30 units of Colistin; MU = Million Unit

[Precaution]

1) May cause damage in kidney function by overdosing;

2) Prohibited to use during laying period.

[Storage] It should be kept cool and dry in well-closed original package.

[Package] 25kg Drum net each

[Shelf Life] Two Years

CAS Registry Number:	1264-72-8
Synonyms:	;Colistin Sulphate;n-[3-amino-1-[[1-[[3-amino-1-[[6,9,18-tris(2-aminoethyl)-3-(1-hydroxyethyl)-12,15-bis(2-methylpropyl)-2,5,8,11,14,17,20-heptaoxo-1,4,7,10,13,16,19-heptazacyclotricos-21-yl]carbamoyl]propyl]carbamoyl]-2-hydroxy-propyl]carbamoyl]propyl]-5-methyl-heptanamide sulfate;N-[(2S)-4-amino-1-{[(2S,3R)-1-{[(2S)-4-amino-1-oxo-1-{[(3S,6S,9S,12S,15R,18S,21S)-6,9,18-tris(2-aminoethyl)-3-[(1R)-1-hydroxyethyl]-12,15-bis(2-methylpropyl)-2,5,8,11,14,17,20-heptaoxo-1,4,7,10,13,16,19-heptaazacyclotricosan-21-yl]amino}butan-2-yl]amino}-3-hydroxy-1-oxobutan-2-yl]amino}-1-oxobutan-2-yl]-6-methyloctanamide sulfate (1:1);N-[(1S)-3-amino-1-{[(1S,2R)-1-{[(1S)-3-amino-1-{[(3S,6S,9S,12S,15R,18S,21S)-6,9,18-tris(2-aminoethyl)-3-[(1R)-1-hydroxyethyl]-12,15-bis(2-methylpropyl)-2,5,8,11,14,17,20-heptaoxo-1,4,7,10,13,16,19-heptaazacyclotricosan-21-yl]carbamoyl}propyl]carbamoyl}-2-hydroxypropyl]carbamoyl}propyl]-5-methylheptanamide;belcomycin;
Molecular Formula:	C₅₂H₉₈N₁₆O₁₃
Molecular Weight:	1155.4339
Molecular Structure:
Hazard Symbols:	T:Toxic;
Risk Codes:	R25:;
Safety Description:	S45:;

Company:	Zhejiang University Sunny Nutrition Technology Co.,Ltd. [ China ]
Contact:	Mrs. Jessica Wang
Tel:	+86-571-88219255 88212050
Fax:	+86-571-88210515
Email:	sunny@sunnynutri.com

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