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CAS No 535-75-1 , piperidine-2-carboxylic acid

  • Name: piperidine-2-carboxylic acid
  • Synonyms: Pipecolinic acid; 2-PIPERIDINECARBOXYLIC ACID; Dihydrobaikiane; DL-Pipecolinic acid; pipecolate; Homoproline;piperidine-2-carboxylic acid; piperidine-2-carboxylic acid;
  • CAS Registry Number:
  • Melting Point: 268-278 ºC
  • Flash Point: 114.5 ºC
  • Boiling Point: 265.8 ºC at 760 mmHg
  • Density: 1.125 g/cm3
  • Safety Statements: R36/37/38
  • Hazard Symbols: Xi: Irritant;
  • Flash Point: 114.5 ºC
  • EINECS: 208-616-3
  • Molecular Weight: 129.15704
  • InchiKey: HXEACLLIILLPRG-UHFFFAOYSA-N
  • InChI: InChI=1S/C6H11NO2/c8-6(9)5-3-1-2-4-7-5/h5,7H,1-4H2,(H,8,9)
  • Risk Statements: S24/25
  • Molecular Formula: C6H11NO2
  • Molecular Structure:CAS No:535-75-1 piperidine-2-carboxylic acid

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535-75-1 DL-Pipecolinic acid

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References of piperidine-2-carboxylic acid
Title: Pipecolic Acid
CAS Registry Number: 535-75-1
CAS Name: 2-Piperidinecarboxylic acid
Synonyms: pipecolinic acid; hexahydropicolinic acid; homoproline; dihydrobaikiaine
Molecular Formula: C6H11NO2
Molecular Weight: 129.16
Percent Composition: C 55.79%, H 8.58%, N 10.84%, O 24.77%
Literature References: The l-form occurs in plants: Phillips, Chem. Ind. (London) 1953, 127. Prepn: A. Ladenburg, Ber. 24, 640 (1891); Stevens, Ellman, J. Biol. Chem. 182, 75 (1950); V. Asher et al., Tetrahedron Lett. 22, 141 (1981). Synthesis of L-pipecolic acid from L-lysine: Fujii, Miyoshi, Bull. Chem. Soc. Jpn. 48, 1341 (1975). Synthesis of racemate: R. T. Shuman et al., J. Org. Chem. 55, 738 (1990).
 
Derivative Type: l-Form
Properties: Needles by sublimation, mp 270°. [a]D25 -34.9°. Sol in water, dil alcohol. Sparingly sol in abs alcohol, acetone, chloroform. Insol in ether.
Melting point: mp 270°
Optical Rotation: [a]D25 -34.9°
 
Derivative Type: d-Form
Properties: Platelets from alcohol, mp 270°. [a]D25 +35.7°. Sol in water. Somewhat sol in alcohol.
Melting point: mp 270°
Optical Rotation: [a]D25 +35.7°
 
Derivative Type: dl-Form
Properties: Leaflets from water, mp 264°. Sol in water, boiling alcohol.
Melting point: mp 264°
 
Derivative Type: dl-Hydrochloride
Molecular Formula: C6H11NO2.HCl
Molecular Weight: 165.62
Percent Composition: C 43.51%, H 7.30%, N 8.46%, O 19.32%, Cl 21.41%
Properties: Crystals (warts) from alcohol + benzene, mp 258-262°.
Melting point: mp 258-262°