Oxytetracycline / geomycin /terramyc

English Name: terramycin; Oxytetracycline

Other names: oxytetracycline base; Geomycin; Oxytetracycline; 4-dimethylamino-1,4,4a, 5,5a, 6,11,12a-octahydro-3,5,6,10,12,12a-hexahydroxy-6-methyl-1,11-dioxo-tetraphenyl-2-formamide; 4- (dimethylamino) - 1,4,4a, 5,5a, 6,11,12a-octahydro-3,5,6,10,12,12a-hexahydroxy-6-methyl-1,11-dicarbonyl -[4s- (4) α, 4A α, five α, 5A α, six β, 12A α)]- 2-naphthalene formamide

CAS No.: 79-57-2

C22H24N2O9= 460.44

Grade: USP level

Content: 95.0 ~ 100.5%

Potency: ≥ 930u/mg

PH：4.5～7.5

Specific rotation: -203 ~ -216 º

Absorption coefficient 353nm:290 ~ 310

Impurity absorption 430nm: ≤ 0.25

Impurity absorption 490nm: ≤ 0.20

Heavy metals: ≤ 0.005%

Physicochemical properties: light yellow to yellow crystalline powder. Melting point 181-182 ℃ (decomposition). Slightly soluble in ethanol, very slightly soluble in water. It is stable in air, darkens in sunlight, and is easy to be destroyed in alkali solution.

Application: biochemical research, is a broad-spectrum antibiotic extracted from the culture medium of Streptomyces crassiformis. Its antibacterial spectrum, antibacterial effect and application are basically the same as tetracycline and chlortetracycline.

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