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Antibiotics Reference Guide
| Product | Prod. No. | Mol. Wt. | Gram (+) bacteria | Gram (-) bacteria | Myco- bacteria | Myco- plasma | Toxicity to microbes (µg/ml) | Toxicity to plant tissue (µg/ml) | Working conc. (µg/ml) and applications1 | Product Solubility | Liquid Storage |
| Carbenicillin | C3416 | 422.4 | X | XX | 500 | >1000 | up to 500 (CC,PR,EC) | Water | -0°C 2-8°C 3 days | ||
| Cefotaxime | C7039 | 477.4 | X | XX | 90 | >100 | up to 500 (CC,PR,EC) | Water | -0°C 2-8°C 22 days | ||
| Chloramphenicol | C1919 | 323.1 | XX | XX | X | X | 128 | >1 | 10-35 (TS) | EtOH | 2-8°C 30 days |
| G418 Disulfate Salt | G1279 | 692.7 | 10-500 | Water | -20°C 6 mo. | ||||||
| Gentamicin sulfate | G6896 | X | XX | XX | 50 | >50 | up to 250 (CC) | Water | 2-8°C 12 mo. | ||
| Hygromycin B | H9773 | 527.5 | 100-200 | Water | 2-8°C 6 mo. | ||||||
| Kanamycin | K4378 | 582.6 | XX | XX | XX | 100 | >2 | 16 (SSC); up to 40 (CC,PR,EC) | Water | 2-8°C 12 mo. | |
| Paromycin | P8692 | 615.6 | XX | X | Water | 2-8°C 21 days | |||||
| Penicillin G, potassium | P8306 | 372.5 | XX | X | 1005 | up to 100 | Water | 2-8°C 4 days | |||
| Penicillin G, sodium | P8431 | 356.4 | XX | X | 1005 | up to 100 | Water | 2-8°C 4 days | |||
| Rifampicin | R7382 | 823.0 | XX | XX | XX | 15 | >25 | 50 (TS); up to 25 (PC,TEC) | DMSO | 2-8°C 1 day | |
| Streptomycin sulfate | S0774 | 1457.4 | X | XX | X | 100 | >16 | Water | 2-8°C 30 days | ||
| Vancomycin | V1130 | 1485.7 | XX | 5 | >100 | up to 10 (PC); up to 40 (cc,EC,STM) | Water | 2-8°C 7 days | |||
| XX = Effective against most species X = Effective against certain species  | |||||||||||
