There exists several characteristics that make the difference between a mixture and a compound. A mixture can contain components in any proportions while a compound contains components in fixed proportions.
Best Answer: the longest you should use an open vial of insulin for is 30 days but you will have a 20 day supply per vial if you are using U-100 insulin. 1 cc equals 100 units so a 10 ml bottle contains 1000 units, at 48 units per day that will last you 20 days. not equivalent syringes. use only insulin syringe and read type/ strength of insulin. Too dangerous to discuss on yahoo. not equivalent to TB syringes either.
Visual guide to barrel markingsEdit. This is a 1 cc, 1 ml U100 insulin syringe with markings indicating every TWO units. This is a 1/2 cc, 0.5 ml U100 insulin syringe with markings indicating each unit. These are 3/10 cc, 0.3 ml U100 insulin syringes. At left is half-scale, or half-unit markings. At right is whole units with one mark for each unit of insulin.