L-Cystine(56-89-3) IR1
Molecular FormulaC6H12N2O4S2
Molecular Weight240.3
InChIInChI=1S/C6H12N2O4S2/c7-3(5(9)10)1-13-14-2-4(8)6(11)12/h3-4H,1-2,7-8H2,(H,9,10)(H,11,12)/t3-,4+
InChIKey LEVWYRKDKASIDU-ZXZARUISSA-N
SmilesC(O)(=O)[C@H](CSSC[C@H](C(O)=O)N)N
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![](https://www.chemicalbook.com/Spectrum/56-89-3_MS.gif)
Mass
MS-NW-8324
L-cystine
C6H12N2O4S2 (Mass of molecular ion: 240)
Source Temperature: 250 °C
Sample Temperature: 270 °C
Direct, 75 eV
15.0 4.9
16.0 17.7
17.0 24.1
18.0 13.3
26.0 2.2
27.0 6.8
28.0 20.5
29.0 3.3
30.0 5.0
32.0 24.8
33.0 23.3
34.0 61.4
35.0 1.9
36.0 3.2
38.0 1.1
39.0 3.0
40.0 3.0
41.0 8.0
42.0 22.1
43.0 12.8
44.0 100.0
45.0 7.6
46.0 2.6
47.0 2.2
52.0 1.0
53.0 1.4
54.0 3.8
55.0 3.4
56.0 3.2
57.0 2.9
58.0 5.0
59.0 10.1
60.0 5.2
61.0 2.1
64.0 6.4
66.0 1.3
67.0 1.0
68.0 3.9
69.0 5.2
70.0 1.9
71.0 1.8
72.0 1.3
73.0 1.5
74.0 5.2
75.0 4.4
76.0 6.0
84.0 1.0
85.0 1.9
86.0 4.1
87.0 1.6
88.0 1.5
97.0 1.0
99.0 2.2
100.0 2.4
101.0 2.0
102.0 1.5
103.0 1.2
111.0 1.1
112.0 1.9
113.0 1.0
114.0 1.0
126.0 1.4
127.0 1.2
130.0 1.2