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5.00609

Sigma-Aldrich

Temozolomide

Synonym(s):

Temozolomide, CCRG 81045, TMZ, 3,4-Dihydro-3-methyl-4-oxoimidazo[5,1-d][1,2,3,5]tetrazine-8-carboxamide, NSC 362856, 3-Methyl-4-oxo-3,4-dihydroimidazo[5,1-d][1,2,3,5]tetrazine-8-carboxamide

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About This Item

Empirical Formula (Hill Notation):
C6H6N6O2
CAS Number:
85622-93-1
Molecular Weight:
194.15
MDL number:
MFCD00866492
UNSPSC Code:
12352200
NACRES:
NA.77

Assay

≥99% (HPLC)

Quality Level

100

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
protect from light

color

off-white

solubility

DMSO: 25 mg/mL

storage temp.

2-8°C

InChI

1S/C6H6N6O2/c1-11-6(14)12-2-8-3(4(7)13)5(12)9-10-11/h2H,1H3,(H2,7,13)

InChI key

BPEGJWRSRHCHSN-UHFFFAOYSA-N

General description

A cell-permeable, orally bioavailable, blood-brain barrier-permeant MTIC [5-(3-methyltriazen-1-yl-)-imidazole-4-carboxamide] prodrug whose in vivo DNA alkylating activity is employed in anticancer therapy. MGMT (O6-methylguanine DNA methyl transferase) repairs TMZ-damaged DNA lesion by covalently transferring O6-methylation on guanine residues to a cysteine residue on the MGMT, forming the basis of TMZ-resistance in cancer treatment.
A cell-permeable, orally bioavailable, blood-brain barrier-permeant MTIC [5-(3-methyltriazen-1-yl-)-imidazole-4-carboxamide] prodrug whose in vivo DNA alkylating activity is employed in anticancer therapy. MGMT (O6-methylguanine DNA methyl transferase) repairs TMZ-damaged DNA lesion by covalently transferring O6-methylation on guanine residues to a cysteine residue on the MGMT, forming the basis of TMZ-resistance in cancer treatment.

Please note that the molecular weight for this compound is batch-specific due to variable water content. Please refer to the vial label or the certificate of analysis for the batch-specific molecular weight. The molecular weight provided represents the baseline molecular weight without water.

Biochem/physiol Actions

Cell permeable: yes
Primary Target
DNA guanine residues
Reversible: no

Packaging

Packaged under inert gas

Warning

Toxicity: Harmful & Carcinogenic / Teratogenic (E)

Reconstitution

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.

Other Notes

Neyns, B., et al. 2010. Cancer116, 2868.
Marchesi, F., et al. 2007. Pharmacol. Res.56, 275.
Chakravarti, A., et al. 2006. Clin. Cancer Res.12, 4738.
Natsume, A., et al. 2005. Cancer Res.65, 7573.
Jen, J.F., et al. 2000. Pharm. Res.17, 1284.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Pictograms

Exclamation markHealth hazard
GHS07,GHS08

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Oral - Carc. 1B - Eye Irrit. 2 - Muta. 1B - Repr. 1B - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Regulatory Information

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Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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