Ojima:KOX00530n

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All Molecules KOX PR PBX COX

Ion Frequency

Prec.-Product

Neutral Loss

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2,3-Pyridinedicarboxylate

IDs and Links
MassBank	2,3-Pyridinedicarboxylate
CAS	89-00-9
Keio ID	P094-

Top 10 Similar Molecules of 2,3-Pyridinedicarboxylate

Ranking	About scoring
P079+ Score:9.54 P094+ Score:9.54 H015+ Score:9.54 N044+ Score:3.59 D030+ Score:3.59 T060+ Score:3.59 Q008+ Score:3.59 Q001+ Score:3.59 P099+ Score:3.59 P057+ Score:3.59	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。

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Page list for each fragment
Pages Related to Peak C6H4NO2:   H015+  P094+  P079+   Pages Related to Peak C5H4N:   A043+  E012+  H015+  H027+  I066+  M037+  N004+  P014+  P053+  P068+  P094+  P113+  A052+  A068+  A123+  C089+  C170+  D032+  F013+  H021+  H058+  H112+  I017+  I051+  M063+  M066+  M111+  M172+  N001+  N016+  N067+  P045+  P056+  P057+  P079+  P099+  Q001+  Q008+  T060+  D030+  N044+

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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。

KOX00530n	166 C7H4NO4	122 C6H4NO2	78 C5H4N	59 C2H3O2	45 CHO2
166 C7H4NO4
122 C6H4NO2	CO2
78 C5H4N	C2O4	CO2
59 C2H3O2	C5HNO2	C4HN
45 CHO2	C6H3NO2	C5H3N		CH2

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