Basic information
- Standard SMILES
O=C1CC[C@H](C(=O)O)N1- InChIKey
ODHCTXKNWHHXJC-GSVOUGTGSA-N- Molecular formula
- C5H7NO3
- Average molar mass
- 129.11 g/mol
- Monoisotopic mass
- 129.04259308
Overview
5-oxo-D-proline is the D-enantiomer of 5-oxoproline. It has a role as a metabolite. It is a 5-oxoproline and a D-proline derivative. It is a conjugate acid of a 5-oxo-D-prolinate. It is an enantiomer of a 5-oxo-L-proline.
Names & identifiers
- Preferred name
- D-Pyroglutamic acid
- IUPAC
- (2R)-5-oxopyrrolidine-2-carboxylic acid
- English name
- D-Pyroglutamic acid
- Molecular formula
- C5H7NO3
- Molecular weight
- 129.11
Names & synonyms
Show more names
Database identifiers
- CAS
4042-36-8- PubChem CID
- 439685
- DTXSID
DTXSID10193432- ChEMBL
CHEMBL1235172- ChEBI
CHEBI:16924- UNII
- TQP297C4HN
- EC Number
- 223-735-0
- Nikkaji
- J53.019K
Properties
Computed structural properties
- XLogP
- -0.8
- Topological polar surface area
- 66.4 Ų
- Hydrogen bond donors
- 2
- Hydrogen bond acceptors
- 3
- Rotatable bonds
- 1
- Heavy atoms
- 9
- Formal charge
- 0
- Complexity
- 154
Experimental & physicochemical properties
Physicochemical properties
- Melting point
- 155 · 155-162 °C
- alpha
- 27.5 · 27.5 º (c=10,1N NaOH)
- Boiling point
- 239.15 °C · 239.15°C (rough estimate)
- Density
- 1.3816 · 1.3816 (rough estimate)
- refractive index
- 10 ° · 10 ° (C=5, H2O)
- storage temp.
- Sealed in dry,Room Temperature
- solubility
- Dimethylformamide, DMSO (Slightly), Methanol (Slightly), Water
- form
- Solid
- pka
- 3.48 · 3.48±0.20(Predicted)
- color
- Off-White to Light Beige
- optical activity
- 22 · [α]22/D +10°, c = 1.5 in H2O
- Water Solubility
- soluble
- Merck
- 14 · 14,8001
- BRN
- 82133 · 82133
- Major Application
- peptide synthesis
- InChI
- 1S/C5H7NO3/c7-4-2-1-3(6-4)5(8)9/h3H,1-2H2,(H,6,7)(H,8,9)/t3-/m1/s1
- InChIKey
- ODHCTXKNWHHXJC-GSVOUGTGSA-N
- SMILES
- OC(=O)[C@H]1CCC(=O)N1
- CAS DataBase Reference
- 4042 · 4042-36-8(CAS DataBase Reference)
- FDA UNII
- 297 C4HN · TQP297C4HN
- UNSPSC Code
- 12352200 · 12352200
- NACRES
- 22 · NA.22
- Symbol(GHS)
- 7 · GHS07
- Signal word
- Warning
- Hazard statements
- 315 · H315-H319-H335
- Precautionary statements
- 261 · P261-P280a-P304+P340-P305+P351+P338-P405-P501a
- PPE
- 95 · dust mask type N95 (US), Eyeshields, Gloves
- Hazard Codes
- Xi
- Risk Statements
- 36 · 36/37/38
- Safety Statements
- 26 · 26-36-37/39
- WGK Germany
- 3 · 3
- HS Code
- 29339900 · 29339900
- Storage Class
- 11 · 11 - Combustible Solids
Safety & regulation
GHS classification
GHS Classification
Warning
H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 49 reports by companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Safety data
- PPE
- dust mask type N95 (US), Eyeshields, Gloves
- wgk
- 3
- hs_code
- 29339900
- risk_code
- 36/37/38
- Signal word
- Warning
- Symbol(GHS)
- GHS07
- hazard_code
- Xi
- safety_code
- 26-36-37/39
- Storage Class
- 11 - Combustible Solids
- Hazard statements
- H315-H319-H335
- Precautionary statements
- P261-P280a-P304+P340-P305+P351+P338-P405-P501a
Chemistry & industry
Applications
DescriptionD-Pyroglutamic acid, also known as 5-oxo-D-proline, is a metabolite of D-glutamate. It is formed from D-glutamate by D-glutamate cyclase. The levels of D-pyroglutamic acid are increased in the urine of patients with nascent metabolic syndrome and the plasma of patients with end-stage renal disease.
OccurrenceD-pyroglutamic acid is formed by the dehydration between the α-NH2 group and the γ-hydroxyl group of glutamic acid to form an intramolecular amide bond; it can also be formed by the loss of an amide group in the glutamine molecule.
UsesServes as a building block in the synthesis of diphthamide.
Upstream & downstream products
Upstream raw materials
Downstream products
Suppliers50 total
Additional notes
DefinitionChEBI: D-Pyroglutamic acid is the D-enantiomer of 5-oxoproline. It has a role as a metabolite. It is a D-proline derivative and a 5-oxoproline. It is a conjugate acid of a 5-oxo-D-prolinate. It is an enantiomer of a 5-oxo-L-proline.
Related reactions
Linked notes
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