Where can I find the density of pure L-Proline?

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The discussion centers around the need for a reliable source of density values for L-Proline to facilitate a simulation. The Handbook of Chemistry and Physics does not provide this information, prompting the search for alternative references. The Merck Index is suggested as a potential source for obtaining the density data needed for the simulation.
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A simulation I'm running takes the density as an input when preparing the system and I'd prefer not to have to measure it experimentally so it would be really useful if this was tabulated somewhere. I was looking in the Handbook of Chemistry and Physics, but L-Proline has no entry in it's density column there. I wondered if anyone knew a good source for this.
 
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The Merck Index might have it.
 
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