1
Fig
ure
S1
:
NMR of Strecker Alanine standard.
2
Fig
ure
S
2:
Steps in derivatization of samples, standards, and blanks.
1YV
G
L
4 &PERO
WEQI
Q0
1I
3
,
Q0
,
3
\
WEQI
(
V
]
YRHIV
2
1YVG
L
%%
4
&PERO
͌0
1I3,
͌
0
EGIX]P
'P
WEQI
WEQI
WEQI
'
LV
(
V
]
YRHIV
2
σ'
LV
4
EVXMEP
(
V
]
Y
R
HIV
2
1YVG
L
%%
͌0
LI\
WEQI
WEQI
WEQI
͌
0
LI\ERI
σ
͌
0
8*%%
1EOI
QIXL]P I
W
XIV MR
I
EGL ZMEP
1EOI
XVMJPYSYVSEGIXEXI
*MREP (IVMZ
E
XMZI
4
&PERO
4
&PERO
4
&PERO
4
&PERO
4
&PERO
1YVG
L
%%
4
&PERO
4
&PERO
8VERWJIV EREP]XI XS ZMEPW
3
ƔƏ
Ə
Ƒ ѵ
Ɠ ѵ
ѵ ѵ
Ѷ ѵ
ƐƏƏ
ƐƔƏ
ƑƔƏ
ƑƏƏ
u1_bvom
Ѵ-mh
uo1;7u-Ѵ Ѵ-mh Ɛ
uo1;7u-Ѵ Ѵ-mh Ƒ
uo1;7u-Ѵ Ѵ-mh ƒ
uo1;7u-Ѵ Ѵ-mh Ɠ
lń
Ő -ő
m|;mvb| Ő &mb|vő
bu;1| Ѵঞom -vv "r;1|u- =ou u1_bvom -m7 Ѵ-mhv Ő!;|;mঞom ঞl; ƕĺƓƏ |o ƕĺƕƏ lbmő
ƒƏƏ
ƐĺƑ ƕ
Ɛ ƕ
ƐĺƓ ƕ
Ɛĺѵ ƕ
ƐĺѶ ƕ
Ƒ ƕ
Ő1ő
Ə
Ƒ Ɣ
Ɛ Ɣ
Ɠ Ɣ
Ɣ Ɣ
ѵ Ɣ
ƕ Ɣ
Ѷ Ɣ
ƒ Ɣ
ƐƏѶ
ƐƐƏ
ƐƐƐ
ƐƐƑ
ƐƐƒ
ƐƐƓ
ƐƐƔ
ƐƐѵ
ƐƐƕ
ƐƐѶ
ƐƏƖ
m|;mvb| Ő &mb|vő
u1_bvom
Ѵ-mh
uo1;7u-Ѵ Ѵ-mh Ɛ
uo1;7u-Ѵ Ѵ-mh Ƒ
uo1;7u-Ѵ Ѵ-mh ƒ
uo1;7u-Ѵ Ѵ-mh Ɠ
bu;1| Ѵঞom -vv "r;1|u- =ou u1_bvom -m7 Ѵ-mhv Ő!;|;mঞom ঞl; ƕĺƓƏ |o ƕĺƕƏ lbmő
lń
Ő -ő
Ő7ő
u1_bvom
Ѵ-mh
uo1;7u-Ѵ Ѵ-mh Ɛ
uo1;7u-Ѵ Ѵ-mh Ƒ
uo1;7u-Ѵ Ѵ-mh ƒ
uo1;7u-Ѵ Ѵ-mh Ɠ
Ə
ѵ
ƕ
ѵĺƔ
ƕĺƔ
Ѷ
Ɩ
ѶĺƔ
ƖĺƔ
ƐƏ
Ƒ ƕ
Ɠ ƕ
ѵ ƕ
Ѷ ƕ
ƐĺƑ Ѷ
Ɛ Ѷ
!;|;mঞom $bl; Őlbmő
m|;mvb| Ő &mb|vő
bu;1| Ѵঞom _uol-|o]u-lv =ou u1_bvom -m7 Ѵ-mhv
lń
ƐƓƏĺƏƒƑ
Ő0ő
(a)
(
b
)
(
c
)
4
Fig
ure
S
3
:
Gas chromatograms and mass spectra for the analytical Murchison sample. (a) Mass
spectra from
m/z
50
-
300 for Murchison sample and blanks. (
b
) Chromatogram for the
m/z
140.032 trace (the main fragment for alanine) for Murchison sample and blanks from 5 to 1
0
minutes. (
c
) Mass spectra from
m/z
108
-
118 (113 fragment measurement window) for Murchison
sample and blanks. (
d
) Mass spectra from
m/z
135
-
146 (140 fragment measurement window) for
Murchison sample and blanks. (
e
) Mass spectra from
m/z
181
-
187 (184 fragment measurement
window) for Murchison sample and blanks. Retention time for the mass spectra capture the
alanine derivative’s elution time.
Ƒ ѵ
Ə
Ɠ ѵ
ѵ ѵ
Ѷ ѵ
ƐĺƑ ƕ
Ɛ ƕ
ƐĺƓ ƕ
Ɛĺѵ ƕ
ƐĺѶ ƕ
u1_bvom
Ѵ-mh
uo1;7u-Ѵ Ѵ-mh Ɛ
uo1;7u-Ѵ Ѵ-mh Ƒ
uo1;7u-Ѵ Ѵ-mh ƒ
uo1;7u-Ѵ Ѵ-mh Ɠ
m|;mvb| Ő &mb|vő
bu;1| Ѵঞom -vv "r;1|u- =ou u1_bvom -m7 Ѵ-mhv Ő!;|;mঞom ঞl; ƕĺƓƏ |o ƕĺƕƏ lbmő
lń
Ő -ő
Ő;ő
ƐƒƔ
Ɛƒѵ
Ɛƒƕ
ƐƒѶ
ƐƒƖ
ƐƓƏ
ƐƓƐ
ƐƓƑ
ƐƓƒ
ƐƓƓ
ƐƓƔ
ƐƓѵ
u1_bvom
Ѵ-mh
uo1;7u-Ѵ Ѵ-mh Ɛ
uo1;7u-Ѵ Ѵ-mh Ƒ
uo1;7u-Ѵ Ѵ-mh ƒ
uo1;7u-Ѵ Ѵ-mh Ɠ
bu;1| Ѵঞom -vv "r;1|u- =ou u1_bvom -m7 Ѵ-mhv Ő!;|;mঞom ঞl; ƕĺƓƏ |o ƕĺƕƏ lbmő
Ő=ő
ƐѶƐ
ƐѶƑ
ƐѶƒ
ƐѶƓ
ƐѶƔ
ƐѶѵ
ƐѶƕ
Ɛ Ɣ
Ѷ Ɠ
ѵ Ɠ
Ɠ Ɠ
Ƒ Ɠ
Ə
ƐĺƑ Ɣ
m|;mvb| Ő &mb|vő
lń
Ő -ő
(
d
)
(
e
)
5
Fig
ure S4:
Ketene reaction mechanism to create alanine with a similar carbon isotope structur
e
to the one measured in this paper. Pyruvate is created in the ISM and can react with NH
3
either in
the ISM or on a parent body in the solar nebula
.
Ƒ
Œœķ
Ƒ
ƒ
ƒ
ƒ
Ƒ
Ѵ-mbm;
u
-
|
;
|_;mom;
m
Ŗ
ŊƒѵҀ
ƳƐѵѵҀ