Ojima:PR100502n

General Index

All Molecules KOX PR PBX COX

Ion Frequency

Prec.-Product

Neutral Loss

Help

7-Hydroxy-4-methylcoumarin

IDs and Links
MassBank	7-Hydroxy-4-methylcoumarin
CAS	90-33-5
Keio ID

Top 10 Similar Molecules of 7-Hydroxy-4-methylcoumarin

Ranking	About scoring
T032+ Score:13.45 T002+ Score:13.45 S041+ Score:11.76 K005+ Score:11.76 T003+ Score:11.76 E033+ Score:11.29 P002+ Score:9.29 H027+ Score:9.1 B026+ Score:8.6 B009+ Score:8.6	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 C9H7O2:   T002+  T032+   Pages Related to Peak C9H7O:   P002+   Pages Related to Peak C8H7O:   D046+  E033+  L007+  T002+  A137+  A226+  D185+  E013+  P070+  Q001+  S058+  T032+  T041+  T044+  V021+   Pages Related to Peak C7H5O:   X004+  B009+  B026+   Pages Related to Peak C6H5O:   D128+  H027+  T003+  A114+  C047+  K005+  N063+  P079+  S041+   Pages Related to Peak C7H5:   C063+  E033+  H027+  H029+  I022+  I025+  I030+  I038+  M037+  M040+  M053+  M078+  T003+  T054+  A035+  A036+  D178+  D180+  K005+  M101+  M103+  N016+  S041+  T031+  N044+   Pages Related to Peak C6H5:   A010+  A043+  A050+  A053+  A067+  A110+  A130+  B007+  B015+  B018+  B020+  D046+  D051+  D166+  E012+  E033+  H029+  H139+  I015+  I019+  I022+  I025+  I030+  I038+  M037+  M040+  M053+  M078+  M127+  N018+  P002+  P014+  P033+  P053+  P059+  P113+  S013+  T002+  T003+  T054+  T112+  X004+  A035+  A036+  A054+  A061+  A064+  A080+  B004+  B009+  B011+  B013+  B026+  C172+  D032+  D039+  D061+  D087+  D178+  D180+  D185+  E013+  F016+  G041+  H045+  I063+  I067+  K004+  K005+  L027+  L031+  M039+  M066+  M082+  M101+  M142+  M150+  M167+  M169+  M172+  N016+  N028+  N067+  O007+  P036+  P047+  P054+  P057+  P061+  P079+  Q001+  Q008+  S040+  S041+  S058+  T008+  T024+  T028+  T030+  T031+  T032+  T060+  T126+  D030+  A155+  N044+

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。

PR100502n	175 C10H7O3	147 C9H7O2	133 C8H5O2	131 C9H7O	119 C8H7O	105 C7H5O	93 C6H5O	91 C6H3O	89 C7H5	77 C6H5
175 C10H7O3
147 C9H7O2	CO
133 C8H5O2	C2H2O	CH2
131 C9H7O	CO2	O
119 C8H7O	C2O2	CO		C
105 C7H5O	C3H2O2	C2H2O	CO	C2H2	CH2
93 C6H5O	C4H2O2	C3H2O	C2O	C3H2	C2H2	C
91 C6H3O	C4H4O2	C3H4O	C2H2O	C3H4	C2H4	CH2	H2
89 C7H5	C3H2O3	C2H2O2	CO2	C2H2O	CH2O	O
77 C6H5	C4H2O3	C3H2O2	C2O2	C3H2O	C2H2O	CO	O		C

(pos/neg)<<First Page   (pos/neg)<Previous Page

Next Page>(pos/neg)   Last Page>>(pos/neg)