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490091

Sigma-Aldrich

L-Phenylalanine-1-13C

99 atom % 13C

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Synonym(s):
L-Phenylalanine-carboxy-13C
Linear Formula:
C6H5CH2CH(NH2)13CO2H
CAS Number:
Molecular Weight:
166.18
MDL number:
PubChem Substance ID:
NACRES:
NA.12

isotopic purity

99 atom % 13C

Quality Level

Assay

99% (CP)

form

solid

optical activity

[α]25/D -33.0°, c = 1 in H2O

mp

270-275 °C (dec.) (lit.)

mass shift

M+1

SMILES string

[H][C@](N)(Cc1ccccc1)[13C](O)=O

InChI

1S/C9H11NO2/c10-8(9(11)12)6-7-4-2-1-3-5-7/h1-5,8H,6,10H2,(H,11,12)/t8-/m0/s1/i9+1

InChI key

COLNVLDHVKWLRT-DMSOPOIOSA-N

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This Item
490121490113489085
L-Phenylalanine-1-13C 99 atom % 13C

Sigma-Aldrich

490091

L-Phenylalanine-1-13C

L-Phenylalanine-3-13C 99 atom % 13C

Sigma-Aldrich

490121

L-Phenylalanine-3-13C

L-Phenylalanine-2-13C 99 atom % 13C

Sigma-Aldrich

490113

L-Phenylalanine-2-13C

assay

99% (CP)

assay

-

assay

-

assay

-

form

solid

form

solid

form

solid

form

solid

mp

270-275 °C (dec.) (lit.)

mp

270-275 °C (dec.) (lit.)

mp

270-275 °C (dec.) (lit.)

mp

266-267 °C (dec.) (lit.)

mass shift

M+1

mass shift

M+1

mass shift

M+1

mass shift

M+1

Quality Level

200

Quality Level

-

Quality Level

-

Quality Level

-

General description

L-Phenylalanine-1-13C is an isotopic analogue of L-phenylalanine.

Application

L-Phenylalanine-carboxy-13C is used to evaluate the 13CO2 level of phenylalanine hydroxylase activity via 13C phenylalanine breath test.

Packaging

This product may be available from bulk stock and can be packaged on demand. For information on pricing, availability and packaging, please contact Stable Isotopes Customer Service.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Yukimoto Ishii et al.
Surgery, 132(5), 849-856 (2002-12-05)
We have previously reported that by means of a breath test with intravenously administered L-[1-13C] phenylalanine (13Cphe), hepatopathy could be quantitatively evaluated by measuring expiratory 13CO2 levels in a short period. It is known that phenylalanine hydroxylase activity (PAHA) plays

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