Ojima:MT000024n

General Index

All Molecules KOX PR PBX COX

Ion Frequency

Prec.-Product

Neutral Loss

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IDs and Links
MassBank	[1]
CAS
Keio ID

Top 10 Similar Molecules of

Ranking	About scoring
A143+ Score:8.8 S049+ Score:8.8 D173+ Score:6.63 G030+ Score:4.76 U006+ Score:4.76 S044+ Score:4.76 M025+ Score:4.76 D183+ Score:4.76 A194+ Score:4.76 A046+ Score:4.76	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 C4H5O3:   D173+   Pages Related to Peak C4H5O2:   A007+  A031+  A059+  E005+  G003+  G005+  G019+  G020+  G043+  G061+  G065+  M067+  M080+  P067+  S049+  A143+  C041+  D038+  D083+  E056+  G046+  G051+  M011+  M081+  M082+  A204+   Pages Related to Peak C3H5O:   C119+  S049+  T010+  T020+  A046+  A143+  A194+  D183+  M025+  S044+  U006+  G030+

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。

MT000024n	147 C5H7O5	129 C5H5O4	101 C4H5O3	87 C3H3O3	85 C4H5O2	59 C2H3O2	57 C3H5O
147 C5H7O5
129 C5H5O4	H2O
101 C4H5O3	CH2O2	CO
87 C3H3O3	C2H4O2	C2H2O	CH2
85 C4H5O2	CH2O3	CO2	O
59 C2H3O2	C3H4O3	C3H2O2	C2H2O	CO	C2H2
57 C3H5O	C2H2O4	C2O3	CO2		CO

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