CoA mass checker
A certificate’s mass-spectrometry line reports a found mass. Put it against the theoretical molecular weight in the compound’s entry and see how far apart they are, in daltons and parts per million. What the rest of a certificate means is in the guide on reading a CoA.
Inputs
Deviation from theoretical
Enter the mass the certificate reports and the difference appears here.
- Theoretical
- 1419.53 Da · BPC-157
- [M+H]⁺ would read
- 1420.54 Da
Formulas
Δ(Da) = observed − theoreticalppm = Δ / theoretical × 10⁶
[M+H]⁺ = theoretical + 1.007
A comparison of two numbers, not a verdict on a product. Identity needs the whole certificate — purity by HPLC, the method, the lab — and this page reads none of that. For research use only.