Ojima:KOX00749p

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Ion Frequency

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Histamine

IDs and Links
MassBank	Histamine
CAS	51-45-6
Keio ID	H058+

Top 10 Similar Molecules of Histamine

Ranking	About scoring
H058+ Score:45.11 A093+ Score:33.78 H002+ Score:28.19 A073+ Score:28.19 I053+ Score:25.75 H069+ Score:25.22 M077+ Score:22.81 H013+ Score:22.81 C012+ Score:22.81 M076+ Score:19.83	The similarity score between two molecules is defined as the sum of Shannon entropy of ionic formulas shared by the molecules: $\textstyle - \sum_{p\in shared} \log(\mbox{frequency}(p))$ 代謝物間の類似度スコアは、それらのスペクトルで共有される（アノテートされた）イオン式のシャノン情報量の総和です。

Links

Page list for each fragment

Pages Related to Peak C5H10N3:   A093+  B019+  H058+  H112+   Pages Related to Peak C5H7N2:   A073+  A093+  A140+  C012+  C208+  D131+  H002+  H013+  M035+  P068+  U011+  B026+  H058+  H069+  I051+  M076+  M077+  P105+   Pages Related to Peak C4H7N2:   A073+  A093+  A140+  C012+  D131+  E011+  G117+  H002+  H013+  C028+  E007+  H058+  H069+  I053+  M029+  M076+  M077+  M124+  P084+  T027+   Pages Related to Peak C4H6N2:   A073+  H002+  H058+  H069+  I053+  M033+   Pages Related to Peak C4H5N2:   A073+  A093+  A140+  A237+  C012+  C077+  D055+  D131+  H002+  H013+  M035+  M042+  M074+  P075+  T014+  T015+  T029+  T056+  T057+  C028+  D183+  H025+  H058+  H069+  I014+  I053+  M029+  M030+  M033+  M076+  M077+  M126+  P098+  T027+  T033+  X012+  M022+  P042+   Pages Related to Peak C4H6N:   A050+  A065+  A073+  A093+  A140+  C012+  C013+  D131+  E011+  H002+  H013+  H027+  H048+  P003+  P048+  R016+  A052+  A194+  D033+  H004+  H058+  H069+  I017+  M076+  M077+  T061+  M022+   Pages Related to Peak C4H5N:   A093+  H064+  H058+  H097+  M063+  P056+  M022+   Pages Related to Peak C3H6N:   A031+  A050+  A065+  A073+  A093+  A110+  A127+  A135+  A174+  C012+  C094+  E005+  E011+  E033+  F034+  G005+  G018+  G019+  G032+  G043+  H002+  H013+  H064+  H073+  I008+  L004+  M003+  M035+  M114+  O008+  P048+  P059+  P092+  T010+  T015+  T020+  V001+  A020+  A046+  A069+  A194+  B044+  B047+  C028+  C043+  C044+  D033+  D036+  D038+  D087+  E007+  E056+  G006+  H003+  H058+  I053+  I063+  L027+  M025+  M029+  M077+  M124+  M126+  M169+  P034+  P046+  P074+  P192+  T022+  T024+  T027+  T061+  T098+  T122+  D030+  A204+  M022+   Pages Related to Peak C3H5N:   D033+  H058+  I053+   Pages Related to Peak C3H4N:   A042+  A073+  A093+  A140+  A237+  B007+  B020+  C012+  C208+  D131+  F025+  F034+  H002+  H013+  M042+  M043+  M074+  P055+  P075+  T014+  T015+  T056+  T057+  A044+  C028+  D033+  D087+  D183+  H025+  H058+  H069+  I014+  I053+  M029+  M030+  M076+  M077+  M110+  M124+  M126+  P098+  T027+  T030+  M022+  P042+

Annotations

Precursor-Product Relationship

About the PP Table (行列表示について)
The matrix is viewed columnwise. The topmost precursor ion in bold face produces the product ions beneath it. Each formula in matrix cells corresponds to the neutral loss. Blackout cells indicate products that cannot be derived, and orange cells indicate a structurally plausible link produced by cleaving a single chemical bond (in cases of ring-opening, two bonds).	行列は列方向に見ます。最上段太字の前駆イオン(precursor ion)が直下の生成イオン群(product ions)になると解釈します。 行列要素に書かれている組成式はニュートラルロスです。黒は前駆イオンから生成しえない関係、オレンジは分子構造における共有結合1本の切断（開環の場合は2本）で生じる関係を意味します。

KOX00749p	112 C5H10N3	95 C5H7N2	83 C4H7N2	82 C4H6N2	81 C4H5N2	68 C4H6N	67 C4H5N	56 C3H6N	55 C3H5N	54 C3H4N
112 C5H10N3
95 C5H7N2	H3N
83 C4H7N2	CH3N	C
82 C4H6N2	CH4N	CH	H
81 C4H5N2	CH5N	CH2	H2	H
68 C4H6N	CH4N2	CHN	HN	N
67 C4H5N	CH5N2	CH2N	H2N	HN	N	H
56 C3H6N	C2H4N2	C2HN	CHN	CN		C
55 C3H5N	C2H5N2	C2H2N	CH2N	CHN	CN	CH	C	H
54 C3H4N	C2H6N2	C2H3N	CH3N	CH2N	CHN	CH2	CH	H2	H

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