MassBank:KOX00174p

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All Molecules KOX PR PBX COX

Ion Frequency

Prec.-Product

Neutral Loss

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Cytosine arabinoside

IDs and Links
MassBank	Cytosine arabinoside
CAS	147-94-4
Keio ID	C119+

Top 10 Similar Molecules of Cytosine arabinoside

Ranking	About scoring
KOX00197p Score:27.67 KOX00631p Score:20.08 KOX00145p Score:20.08 KOX00893p Score:16.51 KOX00004p Score:14.09 KOX00721p Score:13.26 KOX00876p Score:12.53 KOX00780p Score:12.53 KOX00429p Score:12.53 KOX00427p Score:12.53	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

Annotations

Precursor	Product	Comments
C9H14N3O5 (244)	C5H9O4 (133)	d
C9H14N3O5 (244)	C4H6N3O (112)	a
C9H14N3O5 (244)	C3H5N2 (69)	a+b,-NH3
C9H14N3O5 (244)	C3H3N2 (67)	a+b,-NH3
C4H6N3O (112)	C4H3N2O (95)	IT
C4H6N3O (112)	C4H4N3 (94)	IT
C4H6N3O (112)	C3H5N2 (69)	IT

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。

KOX00174p	244 C9H14N3O5	133 C5H9O4	112 C4H6N3O	95 C4H3N2O	94 C4H4N3	69 C3H5N2	67 C5H7	67 C3H3N2	57 C3H5O
244 C9H14N3O5
133 C5H9O4	C4H5N3O
112 C4H6N3O	C5H8O4
95 C4H3N2O	C5H11NO4		H3N
94 C4H4N3	C5H10O5		H2O
69 C3H5N2	C6H9NO5		CHNO
67 C5H7	C4H7N3O5	H2O4
67 C3H3N2	C6H11NO5		CH3NO	CO	CHN	H2
57 C3H5O	C6H9N3O4	C2H4O3	CHN3

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