Oxytetracycline / geomycin /terramyc
Item No.： A0036
Store at： RT
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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