Thymine

Names

[ CAS No. ]:
65-71-4

[ Name ]:
Thymine

[Synonym ]:
5-Methyl-2,4(1H,3H)-pyrimidinedione
Clospirazine
5-methylpyrimidine-2,4-dione
5-Methyluracil
THYMINE extrapure
Thymine
4-Hydroxy-5-methylpyrimidin-2(1H)-one
2,4(1H,3H)-Pyrimidinedione, 5-methyl-
5-Methylpyrimidine-2,4-diol
ThyMine 5GR
5-Methylpyrimidin-2,4(1H,3H)-dion
2,4-dihydroxy-5-methylpyrimidine
D-THYMIDINE
THYMIN
EINECS 200-616-1
5-Methylpyrimidine-2,4(1H,3H)-dione
MFCD00006026
Zidovudine Impurity 3

Biological Activity

[Description]:

Thymine is one of the four nucleobases in the nucleic acid of DNA and can be a target for actions of 5-fluorouracil (5-FU) in cancer treatment, with a Km of 2.3 μM.

[Related Catalog]:

Natural Products >> Saccharides and Glycosides

Research Areas >> Cancer

Research Areas >> Metabolic Disease

[Target]

Human Endogenous Metabolite

[References]

[1]. Tuchman M, et al. Effects of uridine and thymidine on the degradation of 5-fluorouracil, uracil, and thymine by rat liver dihydropyrimidine dehydrogenase. Cancer Res. 1985 Nov;45(11 Pt 1):5553-6.

[Related Small Molecules]

Chemical & Physical Properties

[ Density]:
1.4±0.1 g/cm3

[ Boiling Point ]:
403.8±37.0 °C at 760 mmHg

[ Melting Point ]:
316 °C

[ Molecular Formula ]:
C₅H₆N₂O₂

[ Molecular Weight ]:
126.113

[ Flash Point ]:
198.0±26.5 °C

[ Exact Mass ]:
126.042931

[ PSA ]:
65.72000

[ LogP ]:
-2.09

[ Vapour Pressure ]:
0.0±1.0 mmHg at 25°C

[ Index of Refraction ]:
1.614

[ Storage condition ]:
Store at RT.

[ Stability ]:
Stable. Incompatible with strong oxidizing agents.

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :: XP2100000

CHEMICAL NAME :: Thymine

CAS REGISTRY NUMBER :: 65-71-4

LAST UPDATED :: 199707

DATA ITEMS CITED :: 6

MOLECULAR FORMULA :: C5-H6-N2-O2

MOLECULAR WEIGHT :: 126.13

WISWESSER LINE NOTATION :: T6N CNJ BQ DQ E1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 3500 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

MUTATION DATA

TYPE OF TEST :: Phage inhibition capacity

TEST SYSTEM :: Bacteria - Escherichia coli

DOSE/DURATION :: 1 gm/L

REFERENCE :: ZAPOAK Zeitschrift fuer Allgemeine Mikrobiologie. (Akademie-Verlag GmbH, Postfach 1233, Berlin DDR-1086 Ger. Dem. Rep.) V.1- 1960- Volume(issue)/page/year: 12,583,1972 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X7246 No. of Facilities: 437 (estimated) No. of Industries: 2 No. of Occupations: 8 No. of Employees: 4219 (estimated) No. of Female Employees: 2161 (estimated)

Safety Information

[ Personal Protective Equipment ]:
Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter

[ Hazard Codes ]:
Xi

[ Risk Phrases ]:
R36/37/38

[ Safety Phrases ]:
S22-S24/25

[ RIDADR ]:
NONH for all modes of transport

[ WGK Germany ]:
2

[ RTECS ]:
XP2100000

[ HS Code ]:
2933599090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

DownStream

Customs

[ HS Code ]: 2933599090

[ Summary ]:
2933599090. other compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Articles

Cleavage efficient 2A peptides for high level monoclonal antibody expression in CHO cells.

MAbs 7(2) , 403-12, (2015)

Linking the heavy chain (HC) and light chain (LC) genes required for monoclonal antibodies (mAb) production on a single cassette using 2A peptides allows control of LC and HC ratio and reduces non-exp...

In vitro investigations on the effect of dermal fibroblasts on keratinocyte responses to ultraviolet B radiation.

Photochem. Photobiol. 90(6) , 1332-9, (2014)

Exposure to ultraviolet radiation is closely linked to the development of skin cancers in humans. The ultraviolet B (UVB) radiation wavelength (280-320 nm), in particular, causes DNA damage in epiderm...

An amplified electrochemical strategy using DNA-QDs dendrimer superstructure for the detection of thymine DNA glycosylase activity.

Biosens. Bioelectron. 71 , 249-55, (2015)

A triple-signal amplification strategy was proposed for highly sensitive and selective detection of thymine DNA glycosylase (TDG) by coupling a dendrimer-like DNA label with the electrochemical method...

Related Compounds

The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.