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HCID 5810Erstellt: 26. Oktober 2026

L-4-Hydroxyprolin

Hyp · TRANS-4-HYDROXY-L-PROLINE · HYDROXYPROLINE · (2S,4R)-4-HYDROXYPYRROLIDINE-2-CARBOXYLIC ACID · 4-HYDROXY-L-PROLINE · 4-Hydroxyproline · H-HYP-OH · 4R-4-hydroxyproline

https://huagongshe.com/de/chemical/5810

Molekülstruktur von L-4-Hydroxyprolin

Identifikatoren & physikalische Daten

CAS No.51-35-4
SummenformelC5H9NO3
Durchschnittliche Molmasse131,13 g/mol
Monoisotopische Masse131,05824315 g/mol
SMILESO=C(O)[C@@H]1C[C@@H](O)CN1
InChIKeyPMMYEEVYMWASQN-DMTCNVIQSA-N
PubChem CID5810
ChEMBLCHEMBL352418
ChEBICHEBI:18095
EC No.200-091-9
DTXSIDDTXSID10883225
Lokaler NameL-4-Hydroxyprolin

Chemische & physikalische Eigenschaften

XLogP-3,3
Polarare Oberfläche (TPSA)69,6
H-Brücken-Donoren3
H-Brücken-Akzeptoren4
Frei drehbare Bindungen1
Schwere Atome9
Formalladung0
Komplexität125
StoffklassenBiological Agents -> Amino Acids and Derivatives
ArzneimittelPharmaceuticals -> Listed in ZINC15
KosmetikaSkin conditioningSurfactantAntistaticHair conditioning
LogP (Verteilungskoeffizient)-3.17
LebensmittelzusatzstoffeUse unspecified -> FDA Substance added to food
LöslichkeitSoluble in water at 0, 25, 50, and 60 °C361 mg/mL at 25 °CH2O: 50 mg/mL357.8 g/L (20 º C)
SiedepunktDecomposes242.42°C (rough estimate)
Schmelzpunkt274°C274 - 275 °C273 °C (dec.)(lit.)
Physical DescriptionSolid[Merck Index] White crystalline powder[Alfa Aesar MSDS]
Dissociation ConstantspK1′ 1.82 and pK2′ 9.65
Collision Cross Section130.23 Ų [M+H]+ [CCS Type: DTMethod: stepped-field]139.3 Ų [M+Na]+ [CCS Type: DTMethod: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]122 Ų [M+H]+ [CCS Type: TWMethod: calibrated with polyalanine]128.1 Ų [M+H]+ [CCS Type: DTMethod: single field calibrated with Agilent tune mix (Agilent)]127.9 Ų [M+H]+
Dichte1.3121 (rough estimate)
Dampfdichte4.5 (vs air)
Brechungsindex-75.5 ° (C=4, H2O)
LagerbedingungenStore below +30°C.
AggregatzustandCrystals or Crystalline Powder
pKa (Säurekonstante)1.82, 9.66(at 25℃)
FarbeWhite
GeruchOdorless
pH5.5-6.5 (50g/l, H2O, 20℃)
Merck14,4840
BRN471933
Kosmetik-Inhaltsstoffe FunktionenHAIR CONDITIONINGANTISTATICSURFACTANT - CLEANSINGSKIN CONDITIONING
InChI1S/C5H9NO3/c7-3-1-4(5(8)9)6-2-3/h3-4,6-7H,1-2H2,(H,8,9)/t3-,4+/m1/s1
InChIKeyPMMYEEVYMWASQN-DMTCNVIQSA-N
SMILESO[C@H]1CN[C@@H](C1)C(O)=O
LogP (Verteilungskoeffizient)-0.350 (est)
CAS Datenbank51-35-4(CAS DataBase Reference)
NIST chemische InformationenHydroxyproline(51-35-4)
EPA chemische Informationentrans-4-Hydroxy-L-proline (51-35-4)

Sicherheit & Vorschriften

GHS-EinstufungThis chemical does not meet GHS hazard criteria for 89.3% (25 of 28) of all reports.WarningH315 (10.7%): 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 28 reports by companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Regulatorische InformationenChemical: L-Proline, 4-hydroxy-, (4R)-Status: Active Update: 27-04-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/21207L-Proline, 4-hydroxy-, (4R)-: Does not have an individual approval but may be used under an appropriate group standard
Weitere SicherheitsinformationenIMAP assessments - L-Proline, 4-hydroxy-, trans-: Environment tier I assessment
GefahrenübersichtMay cause irritation[Alfa Aesar MSDS] See L-Proline.
Hazard Classes and CategoriesSkin Irrit. 2 (10.7%)
Carcinogen ClassificationNo indication of carcinogenicity to humans (not listed by IARC).
Wassergefährdungsklasse (WGK)3
TSCA-Inventar-StatusTSCA listed
Zollcode29339990
RTECS-Nr.TW3586500
R-Sätze (R)36/37/38-22
GefahrensymboleXi,Xn
Sicherheitshinweise (S)24/25-36/37/39-27-26
GefahrenklasseIRRITANT
Lagerklasse11 - Combustible Solids

Anwendungen & Verwendung

Beschreibung

A non-essential amino acid. Can be isolated from gelatin. Hydroxyproline has not been reported as added to food in any of the NAS surveys.

Verwenden

A natural constituent of animal structural proteins such as collagen and elastin. Several microorganisms producing proline trans-4- and cis-3-hydroxylase were discovered and these enzymes were applied to the industrial production of trans-4- and cis-3-hydroxy-L-proline.