Hydroxyproline

Hydroxyproline
Names
	IUPAC name (2S,4R)-4-Hydroxypyrrolidine-2-carboxylic acid
Identifiers
CAS Number	51-35-4 ;
3D model (JSmol)	Interactive image;
ChemSpider	5605 ;
ECHA InfoCard	100.000.084
MeSH	Hydroxyproline
PubChem CID	5810;
UNII	RMB44WO89X ;
CompTox Dashboard (EPA)	DTXSID10883225 ;
	InChI InChI=1S/C5H9NO3/c7-3-1-4(5(8)9)6-2-3/h3-4,6-7H,1-2H2,(H,8,9)/t3-,4+/m1/s1 Key: PMMYEEVYMWASQN-DMTCNVIQSA-N ; InChI=1/C5H9NO3/c7-3-1-4(5(8)9)6-2-3/h3-4,6-7H,1-2H2,(H,8,9)/t3-,4+/m1/s1 Key: PMMYEEVYMWASQN-DMTCNVIQBF;
	SMILES C1[C@H](CN[C@@H]1C(=O)O)O;
Properties
Chemical formula	C5H9NO3
Molar mass	131.131 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

(2S,4R)-4-Hydroxyproline, or L-hydroxyproline (C₅H₉O₃N), is an amino acid, abbreviated as Hyp or O, e.g., in Protein Data Bank.