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Testosterone Replacement, Low T, HCG, & Beyond
Testosterone Side Effect Management
HCG: Storage, Travel, Potency
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<blockquote data-quote="tonyfr" data-source="post: 70146" data-attributes="member: 15055"><p>Hmmm...the spec sheet you attached says: "Dilute aqueous solutions undergo rapid loss of activity when stored frozen, or heated, or if excess acid or base is added. Gelatin and serum proteins help to stabilize aqueous solutions of hCG. hCG is stable in a glycerol solution at 100°C for one hour. Solutions in water at ≥ 10 μg/ml can be stored as single use aliquots at 20°C. Solutions at 100 μg/ml in water are stable at 2-8°C for about 2-3 months."</p><p></p><p></p><ul> <li data-xf-list-type="ul">I mix powdered HCG with bacteriostatic water at 11ml for 11,000 IU. What does this means in terms of μg/ml? </li> <li data-xf-list-type="ul">Is this considered to be a "dilute aqueous solution"? If so, it sounds like it shouldn't be frozen. </li> <li data-xf-list-type="ul">The data sheet confusingly says "storage temperature: -20°C". Is this for unmixed HCG? </li> </ul><p></p><p>The best I guess can make from the data sheet is that my reconstituted HCG falls into the 100 μg/ml solution category, can be stored at 2-8°C for about 2-3 months, and shouldn't be frozen. Powdered HCG expires in about 6 months; perhaps storage at -20°C extends that significantly.</p><p></p><p>But, like I said, I'm guessing.</p><p></p><p>BTW, a typical freezer would be around 0°F or -18°C.</p></blockquote><p></p>
[QUOTE="tonyfr, post: 70146, member: 15055"] Hmmm...the spec sheet you attached says: "Dilute aqueous solutions undergo rapid loss of activity when stored frozen, or heated, or if excess acid or base is added. Gelatin and serum proteins help to stabilize aqueous solutions of hCG. hCG is stable in a glycerol solution at 100°C for one hour. Solutions in water at ≥ 10 μg/ml can be stored as single use aliquots at 20°C. Solutions at 100 μg/ml in water are stable at 2-8°C for about 2-3 months." [LIST] [*]I mix powdered HCG with bacteriostatic water at 11ml for 11,000 IU. What does this means in terms of μg/ml? [*]Is this considered to be a "dilute aqueous solution"? If so, it sounds like it shouldn't be frozen. [*]The data sheet confusingly says "storage temperature: -20°C". Is this for unmixed HCG? [/LIST] The best I guess can make from the data sheet is that my reconstituted HCG falls into the 100 μg/ml solution category, can be stored at 2-8°C for about 2-3 months, and shouldn't be frozen. Powdered HCG expires in about 6 months; perhaps storage at -20°C extends that significantly. But, like I said, I'm guessing. BTW, a typical freezer would be around 0°F or -18°C. [/QUOTE]
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Testosterone Replacement, Low T, HCG, & Beyond
Testosterone Side Effect Management
HCG: Storage, Travel, Potency
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