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HCID 5789作成日：2026年10月27日

Thymidine

識別子と物理属性

CAS No.	146183-25-7
分子式	C10H14N2O5
平均分子量	242.23 g/mol
単同位体質量	242.09027155 g/mol
SMILES	Cc1cn([C@H]2C[C@H](O)[C@@H](CO)O2)c(=O)[nH]c1=O
InChIKey	IQFYYKKMVGJFEH-XLPZGREQSA-N
PubChem CID	5789
ChEMBL	CHEMBL52609
ChEBI	CHEBI:17748
EC No.	200-070-4
DTXSID	DTXSID5023661

化学・物理的性質

XLogP	-1.2
極性表面積	99.1
水素結合供与体数	3
水素結合受容体数	5
回転可能結合数	2
重原子数	17
形式電荷	0
複雑度	381
LogP（分配係数）	-0.93
溶解度	73.5 mg/mLWater 50 (mg/mL)
融点	187-189
Optical Rotation	(c = 1, H2O) [a]25 D = +18 ± 0.5°
Physical Description	Solid[Merck Index] White odorless powder[Alfa Aesar MSDS]
Stability/Shelf Life	Solution: A 1% solution of thymidine in water, kept at room temperature, is stable for at least 24 hours (HPLC).
Collision Cross Section	161 Å² [M+Na]+ [CCS Type: DTMethod: single field calibrated with Agilent tune mix (Agilent)]151.22 Å² [M-H]- [CCS Type: DT164.51 Å² [M+Na]+ [CCS Type: DTMethod: stepped-field]157.04 Å² [M-H]- [CCS Type: DT161.6 Å² [M+Na]+ [CCS Type: DTMethod: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]154.1 Å² [M-H]- [CCS Type: DT154.2 Å² [M-H]-161.2 Å² [M+Na]+

安全性と法規制

GHS 分類	This chemical does not meet GHS hazard criteria for 97.6% (121 of 124) of all reports.Not ClassifiedReported as not meeting GHS hazard criteria by 121 of 124 companies (only 2.4% companies provided GHS information). For more detailed information, please visit ECHA C&L website.Aggregated GHS information provided per 124 reports by companies from 4 notifications to the ECHA C&L Inventory.Reported as not meeting GHS hazard criteria per 121 of 124 reports by companies.There are 3 notifications provided by 3 of 124 reports by companies with hazard statement code(s).Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.
規制情報	Chemical: ThymidineStatus: Active Update: 02-09-2014 https://echa.europa.eu/registration-dossier/-/registered-dossier/15994Thymidine: Does not have an individual approval but may be used under an appropriate group standard
その他の安全情報	Evaluation - Chemicals that are unlikely to require further regulation to manage risks to environment
有害性の概要	Causes somnolence and changes in motor activity in intraperitoneal lethal-dose studies of mice (LD50 = 2,512 mg/kg)[RTECS] May cause irritation[Alfa Aesar MSDS]
Hazard Classes and Categories	Not Classified
Toxicity Data	Mouse(ip): LD50 2512 mg/kg

CAS No.

146183-25-7

分子式

C10H14N2O5

平均分子量

242.23 g/mol

単同位体質量

242.09027155 g/mol

SMILES

Cc1cn([C@H]2C[C@H](O)[C@@H](CO)O2)c(=O)[nH]c1=O

InChIKey

IQFYYKKMVGJFEH-XLPZGREQSA-N

PubChem CID

5789

ChEMBL

CHEMBL52609

ChEBI

CHEBI:17748

EC No.

200-070-4

DTXSID

DTXSID5023661

化学・物理的性質

XLogP

-1.2

極性表面積

99.1

水素結合供与体数

水素結合受容体数

回転可能結合数

重原子数

形式電荷

複雑度

381

LogP（分配係数）

-0.93

溶解度

73.5 mg/mLWater 50 (mg/mL)

融点

187-189

Optical Rotation

(c = 1, H2O) [a]25 D = +18 ± 0.5°

Physical Description

Solid[Merck Index] White odorless powder[Alfa Aesar MSDS]

Stability/Shelf Life

Solution: A 1% solution of thymidine in water, kept at room temperature, is stable for at least 24 hours (HPLC).

Collision Cross Section

161 Å² [M+Na]+ [CCS Type: DTMethod: single field calibrated with Agilent tune mix (Agilent)]151.22 Å² [M-H]- [CCS Type: DT164.51 Å² [M+Na]+ [CCS Type: DTMethod: stepped-field]157.04 Å² [M-H]- [CCS Type: DT161.6 Å² [M+Na]+ [CCS Type: DTMethod: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]154.1 Å² [M-H]- [CCS Type: DT154.2 Å² [M-H]-161.2 Å² [M+Na]+

安全性と法規制

GHS 分類

This chemical does not meet GHS hazard criteria for 97.6% (121 of 124) of all reports.Not ClassifiedReported as not meeting GHS hazard criteria by 121 of 124 companies (only 2.4% companies provided GHS information). For more detailed information, please visit ECHA C&L website.Aggregated GHS information provided per 124 reports by companies from 4 notifications to the ECHA C&L Inventory.Reported as not meeting GHS hazard criteria per 121 of 124 reports by companies.There are 3 notifications provided by 3 of 124 reports by companies with hazard statement code(s).Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.

規制情報

Chemical: ThymidineStatus: Active Update: 02-09-2014 https://echa.europa.eu/registration-dossier/-/registered-dossier/15994Thymidine: Does not have an individual approval but may be used under an appropriate group standard

その他の安全情報

Evaluation - Chemicals that are unlikely to require further regulation to manage risks to environment

有害性の概要

Causes somnolence and changes in motor activity in intraperitoneal lethal-dose studies of mice (LD50 = 2,512 mg/kg)[RTECS] May cause irritation[Alfa Aesar MSDS]

Hazard Classes and Categories

Not Classified

Toxicity Data

Mouse(ip): LD50 2512 mg/kg