Ojima:PR100181p

General Index

All Molecules KOX PR PBX COX

Ion Frequency

Prec.-Product

Neutral Loss

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Nicotinamide

IDs and Links
MassBank	Nicotinamide
CAS	98-92-0
Keio ID

Top 10 Similar Molecules of Nicotinamide

[show] Ranking	About scoring
N001+ Score:17.4 I051+ Score:17.4 P099+ Score:13.57 P079+ Score:11.46 M063+ Score:11.46 I017+ Score:11.46 P094+ Score:11.46 G046+ Score:7.86 G021+ Score:7.86 R016+ Score:7.86	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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[show] Page list for each fragment

Pages Related to Peak C6H7N2O:   I051+  N001+  P099+   Pages Related to Peak C5H6NO:   A122+  A191+  B019+  C013+  G061+  G065+  P094+  R016+  A052+  F013+  G021+  G046+  G051+  H004+  H021+  I017+  I051+  M063+  M081+  M082+  M111+  N001+  P045+  P079+  P099+  T060+   Pages Related to Peak C5H6N:   A042+  A220+  B072+  D057+  E012+  G101+  I050+  N004+  P053+  P094+  R016+  S079+  A068+  B026+  D180+  G021+  G046+  H050+  H097+  I017+  I051+  M013+  M063+  N001+  N016+  P035+  P041+  P079+  P183+  S016+  M022+  N044+   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+

Annotations

Precursor	Product	Comments
(0)	(0)	KOX00810

Precursor-Product Relationship

[show] 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。

[hide] PR100181p	123 C6H7N2O	96 C5H6NO	80 C5H6N	78 C5H4N
123 C6H7N2O
96 C5H6NO	CHN
80 C5H6N	CHNO	O
78 C5H4N	CH3NO	H2O	H2

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