1 to 5ml per 100lbs of body weight
Any of these on their own might not mean much, but several together are worth getting checked
Dispose of used syringes in a safe way Used single use U100 syringes should be kept in a sharps container that has been approved by the FDA or a heavy plastic bottle with a lid that fits tightly, like a laundry bottle

General Precautions For research use only Not for human administration Check compatibility Verify that reconstituted compounds are compatible with benzyl alcohol Observe for precipitation Some compounds may precipitate or degrade in the presence of benzyl alcohol Dispose properly Follow institutional guidelines for pharmaceutical waste disposal Report adverse observations Document any unexpected reactions or incompatibilities Quality Assurance USP Standards Bacterostatic Water for Injection must meet United States Pharmacopeia (USP) standards for: Sterility Free from viable microorganisms Pyrogenicity Endotoxin levels below specified limits (typically standards for visible and sub-visible particles pH Within specified range (4.5-7.0) Benzyl alcohol content 0.9% acceptable variance Certificates of Analysis Reputable suppliers provide Certificates of Analysis (COA) with each lot, documenting: Lot number and expiration date Sterility test results Endotoxin testing results pH verification Benzyl alcohol content verification Particulate matter testing Always verify COA availability when sourcing Bacterostatic Water for research applications

Small handling mistakes may cause large public health consequences later
Vitamin B12 is one of eight B vitamins (not twelve, just to make things confusing the substances known as B4, B10, and B11 arent officially considered vitamins)