Hspc hydrogenated soy phosphatidylcholine composition not single molecule?

Short answer: Yes. HSPC (hydrogenated soy phosphatidylcholine) is not a single molecule. It is a mixture of phosphatidylcholine species that have saturated fatty acyl chains.

What that means:
- Hydrogenation removes double bonds, so the acyl chains are predominantly saturated (e.g., C16:0 and C18:0).
- The product is a blend of diacyl PC molecules, with the most common being:
- DPPC (16:0/16:0)
- DSPC (18:0/18:0)
- Other saturated combinations (e.g., 16:0/18:0) present in smaller amounts
- The exact composition (which specific species and their relative amounts) depends on the supplier and the batch. Some vendors provide a data sheet or COA with the approximate distribution; others may simply label it as HSPC.

If you need the precise composition for a project, check the supplier’s technical data sheet or COA for that lot, or contact the supplier for a chromatographic profile.