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EINECS 200-070-4
CAS No. 50-89-5 Density 1.452 g/cm3
Solubility soluble in water Melting Point 186-188 °C(lit.)
Formula C10H14N2O5 Boiling Point
Molecular Weight 242.23 Flash Point
Transport Information Appearance white crystalline powder
Safety 22-24/25-37/39-26 Risk Codes 20/21/22-40-36/37/38
Molecular Structure Molecular Structure of 50-89-5 (Thymidine) Hazard Symbols IrritantXi

1-(2-Deoxy-beta-D-erythro-pentofuranosyl)-5-methyl-2,4(1H,3H)-pyrimidinedione;5-Methyl-2'-deoxyuridine;2,4(1H,3H)-Pyrimidinedione, 1-(2-deoxy-beta-D-erythro-pentofuranosyl)-5-methyl-;2'-Deoxythymidine;5-Methyldeoxyurindine;Uridine, 2'-deoxy-5-methyl-beta-D-Ribofuranoside, thymine-1 2-deoxy-;dT;UNII-VC2W18DGKR;Thyminedeoxyriboside;Thymine-2-deoxyriboside;


Thymidine Chemical Properties

Molecular structure of Thymidine (CAS NO.50-89-5) is:

Product Name: Thymidine
CAS Registry Number: 50-89-5
IUPAC Name: 1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-5-methylpyrimidine-2,4-dione
Molecular Weight: 242.22856 [g/mol]
Molecular Formula: C10H14N2O5
XLogP3: -1.2
H-Bond Donor: 3
H-Bond Acceptor: 5
Melting Point: 186-188 °C(lit.)
Refractive index: 33 ° (C=1, 1mol/L NaOH)
Storage temp.: 0-6°C
Water Solubility: Soluble
Stability: Stable. Incompatible with strong oxidizing agents. 
Surface Tension: 62.2 dyne/cm
Density: 1.452 g/cm3
Product Categories: Fine Chemical & Intermediates; Pyridines, Pyrimidines, Purines and Pteredines; chiral; API intermediates; Zidovudine; Stavudine; Biochemistry; Nucleosides and their analogs; Nucleosides, Nucleotides & Related Reagents; Anti-virals; Bases & Related Reagents; Carbohydrates & Derivatives; Intermediates & Fine Chemicals; Nucleotides; Pharmaceuticals; Miscellaneous Specialties

Thymidine Uses

In cell biology, Thymidine (CAS NO.50-89-5) is used to synchronize the cells in S phase. It is commonly used in cell proliferation assays. It is used as pharmaceutical intermediates, it is used for synthesis of antiviral and anti-HIV drugs.

Thymidine Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intraperitoneal 2512mg/kg (2512mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

Journal of Pharmacology and Experimental Therapeutics. Vol. 207, Pg. 504, 1978.

Thymidine Consensus Reports

Reported in EPA TSCA Inventory. EPA Genetic Toxicology Program.

Thymidine Safety Profile

Safty information about Thymidine (CAS NO.50-89-5) is:
Moderately toxic by intraperitoneal route. An experimental teratogen. Experimental reproductive effects. Human mutation data reported. When heated to decomposition it emits toxic fumes of NOx.
Hazard Codes: IrritantXi 
Risk Statements: 20/21/22-40-36/37/38 
R20/21/22: Harmful by inhalation, in contact with skin and if swallowed  
R40: Limited evidence of a carcinogenic effect  
R36/37/38: Irritating to eyes, respiratory system and skin
Safety Statements  22-24/25-37/39-26
S22:  Do not breathe dust 
S24/25: Avoid contact with skin and eyes
S37/39: Wear suitable gloves and eye/face protection
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
F 10: Keep under argon.
WGK Germany: 3
RTECS: XP2071000

Thymidine Specification

 Thymidine , its cas register number is 50-89-5. It also can be called 1-(2-Deoxy-beta-D-erythro-pentofuranosyl)-5-methyl-2,4(1H,3H)-pyrimidinedione ; 2'-Deoxythymidine ; 2,4(1H,3H)-Pyrimidinedione, 1-(2-deoxy-beta-D-erythro-pentofuranosyl)-5-methyl- ; 5-Methyl-2'-deoxyuridine ; 5-Methyldeoxyuridine ; 5-Methyldeoxyurindine ; AI3-52267 ; CCRIS 1283 ; DThyd ; Deoxythymidine ; NSC 21548 ; Thymidin ; Thymidine ; Thymine-2-deoxyriboside ; Thymine-2-desoxyriboside ; Thyminedeoxyriboside ; UNII-VC2W18DGKR ; Uridine, 2'-deoxy-5-methyl-beta-D-Ribofuranoside, thymine-1 2-deoxy- ; dT . It is a white crystalline powder.

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