344-25-2

Name D-Pyrrolidine-2-carboxylic acid
CAS 344-25-2
EINECS(EC#) 206-452-7
Molecular Formula C5H9NO2
MDL Number MFCD00064317
Molecular Weight 115.13
MOL File 344-25-2.mol
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Chemical Properties

Appearance White to off-white powder
Melting point  223 °C (dec.) (lit.)
alpha  84.75 º (c=4, H2O)
Boiling point  215.41°C (rough estimate)
density  1.36
refractive index  85 ° (C=4, H2O)
storage temp.  Store at RT.
solubility  Methanol (Slightly), Water (Sparingly)
form  Powder
pka 1.952(at 25℃)
color  White to yellow to pale brown
Optical Rotation [α]22/D +85.0°, c = 4 in H2O
Water Solubility  soluble >1000 g/L (20 ºC)
Sensitive  Hygroscopic
Detection Methods Rotation,T,NMR
BRN  80811
InChI 1S/C5H9NO2/c7-5(8)4-2-1-3-6-4/h4,6H,1-3H2,(H,7,8)/t4-/m1/s1
InChIKey ONIBWKKTOPOVIA-SCSAIBSYSA-N
SMILES OC(=O)[C@H]1CCCN1
LogP -0.060 (est)
Uses
proline is a skin-conditioning agent. An amino acid found in the collagen molecule.
CAS DataBase Reference 344-25-2(CAS DataBase Reference)
EPA Substance Registry System 344-25-2(EPA Substance)
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Safety Data

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P271-P280
Hazard Codes  Xi,Xn
Risk Statements 
R22:Harmful if swallowed.
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S22:Do not breathe dust .
S24/25:Avoid contact with skin and eyes .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
WGK Germany  3
F  3-10
Hazard Note  Irritant
TSCA  Yes
REACH Registrations Active
HS Code  29339900
Storage Class 11 - Combustible Solids

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Material Safety Data Sheet(MSDS)

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