Thread: molecular weight
Hey, My pharmasist said that I should use a bigger pin when using humangrade steroids due to the different molecular weight then vet grade roids. I usally use a 25g 1 inch pin for delts . He said to use a 23 g 1inch pin . Is this correct??
Last edited by Merc..; 11-29-2005 at 03:23 PM.
11-29-2005, 03:18 PM #2
You have a question?
Sorry pinn my cpu was freezing up and for some reason it posted it. Weird.. My cpu is on the fritz!!
11-29-2005, 04:19 PM #5
how the hell would the molecular weight be different in vet versus human grade? its the same hormones used, and those hormones have a SPECIFIC molecular weight (for example testosterone has a MW of 288.429
...this is w/o an ester) ......the only difference is the conditions each are manufactured in. your pharmacist is about as smart as my left testicle
11-29-2005, 05:25 PM #6
Wofy-Are you being critical or complimentary to the pharmacist in stating "your pharmacist is about as smart as my left testicle"?
11-29-2005, 05:30 PM #7Originally Posted by shortie
Originally Posted by wolfyEVH
11-29-2005, 09:10 PM #9
Originally Posted by symatech
11-29-2005, 09:19 PM #11Originally Posted by mercedesdd
Originally Posted by tough old man
11-29-2005, 10:19 PM #13Member
- Join Date
- Dec 2002
With all due respect to any pharmacists here, that may be the silliest thing I have heard in a while! WTF would molecular weight have to do with needle size! Use whatever size you want.
11-29-2005, 10:23 PM #14
He was probably thinking along the lines that a higher molecular weight is synonymous with more atoms, more atoms gives more probable areas for intermolecular forces to act (examples: h-bonding, induced dipole-induced dipole etc etc) these forces can alter certain physical properties of a substance. Or perhaps he just felt a larger atomic structure would be more bulky and prone to higher viscosity than smaller ones, which is certainly true.
Of course what isn't true is that these reasons create a large enough effect to warrant use of a larger pin than 25g as many of use here use 25g regularly.
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