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SHEET /m/proline · PubChem CID 614 · CAS 609-36-9 · REV 2026.07

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Proline

from source

C5H9NO2 · 115.13 g/mol

Hpro · H-DL-Pro-OH

What is Proline?

The one amino acid whose side chain loops back onto its own backbone, which kinks a protein chain. Collagen is unusually full of it. from source

CategoryBody
Chemical familyCarboxylic AcidsAmines
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Fig. 1 · 2D structure RDKit

SMILESC1CC(NC1)C(=O)O

Where you'll find it

Your own body makes this one. It is not an ingredient you buy. See the rest of the body group.

Sources & methodology

PubChem CID
614
Wikidata
Q484583
Structure
PubChem → RDKit
Data refreshed

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