English name: Penicillin G Na salt; Benzylpenicillin sodium salt
Other names: Penicillin G sodium; benzyl penicillin sodium; penicillin; benzyl penicillin; penicillin; (2S, 5R, 6R) -3,3-dimethyl-6- (2-phenylacetamido) -7-oxo- 4-Thia-1-azabicyclo [3.2.0] heptane-2-carboxylic acid sodium salt
CAS number: 69-57-8
C16H17N2NaO4S = 356.38
Level: USP Grade
Content: ≥96.0%
Potency: ≥1603u / mg
pH: 5.0 ～ 7.5
Loss on drying: ≤0.5%

Absorbance: 280㎜ wavelength should not exceed 0.10; 264㎜ wavelength should be 0.80 ～ 0.88
Penicillin polymer: The peak area is calculated according to the external standard method, and the polymer containing penicillin should not exceed 0.08% based on penicillin
Properties: white crystalline powder, odorless, or slightly specific odor, decomposition point is 215 ℃. Very soluble in water, soluble in ethanol, insoluble in fatty oil liquid paraffin. It has hygroscopicity, and it can make the β-lactam ring of penicillin open and fail when it encounters acid, alkali, oxidant, penicillinase, etc. Crystalline penicillin sodium salt is more stable in nature, and its aqueous solution is easy to fail when placed at room temperature, and cannot be sterilized by boiling. The penicillin G sodium solution can be stored at 2-8 ° C for one week after filtration and sterilization. It can be stored at -20 ° C for a longer period of time. It can only be stored at 37 ° C for 3 days. Inhibit bacterial cell wall synthesis. Antibacterial spectrum: Gram-positive bacteria.
Storage: 2 ～ 8 ℃

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