CB 1954

Modify Date: 2024-01-06 19:12:59

CB 1954 Structure
CB 1954 structure
Common Name CB 1954
CAS Number 21919-05-1 Molecular Weight 252.184
Density 1.7±0.1 g/cm3 Boiling Point 427.2±45.0 °C at 760 mmHg
Molecular Formula C9H8N4O5 Melting Point 173 °C
MSDS USA Flash Point 212.2±28.7 °C

 Use of CB 1954


Tretazicar (CB 1954), an antitumor prodrug, is highly selective against the Walker 256 rat tumour line. Tretazicar is enzymatically activated to generate a bifunctional agent, which can form DNA-DNA interstrand cross-links. Tretazicar in rat cells involves the reduction of its 4-nitro group to a 4-hydroxylamine by the enzyme NAD(P)H:quinone oxidoreductase 1 (NQO1)[1][2].

 Names

Name 5-(aziridin-1-yl)-2,4-dinitrobenzamide
Synonym More Synonyms

 CB 1954 Biological Activity

Description Tretazicar (CB 1954), an antitumor prodrug, is highly selective against the Walker 256 rat tumour line. Tretazicar is enzymatically activated to generate a bifunctional agent, which can form DNA-DNA interstrand cross-links. Tretazicar in rat cells involves the reduction of its 4-nitro group to a 4-hydroxylamine by the enzyme NAD(P)H:quinone oxidoreductase 1 (NQO1)[1][2].
Related Catalog
In Vitro Tretazicar (CB 1954) (0.1-1000 μM; 3 days) has sensitivity for retrovirally transduced AB22 (AB22-nr) cells with an IC50 of 3 μM[3]. DNA cross-link formation in affected cells is a result of the bioactivation of the drug by the enzyme DT diaphorase (NAD(P)H dehydro-genase (quinone)) in the Walker cells which reduces the 4-nitro group of Tretazicar. The product of this reaction is a difunctional alkylating agent, 5-aziridin-1-yl-4-hydroxylamino-2-nitrobenzamide[4].
In Vivo Tretazicar (CB 1954) (80 mg/kg; i.p. on days 2 and 9) results in a significant increase in survival[3]. Animal Model: Female BALB/c mice (AB22-nr, SKOV3 human ovarian tumour xenograft)[3] Dosage: 80 mg/kg Administration: i.p. on days 2 and 9 Result: The median survival of the AB22-nr was 49 days. Resulted in a significant increase in survival.
References

[1]. Knox RJ,et al. Bioactivation of 5-(aziridin-1-yl)-2,4-dinitrobenzamide (CB 1954) by human NAD(P)H quinone oxidoreductase 2: a novel co-substrate-mediated antitumor prodrug therapy. Cancer Res. 2000 Aug 1;60(15):4179-86.

[2]. Knox RJ, et al. CB 1954: from the Walker tumor to NQO2 and VDEPT. Curr Pharm Des. 2003;9(26):2091-104.

[3]. Green NK, et al. Immune enhancement of nitroreductase-induced cytotoxicity: studies using a bicistronicadenovirus vector. Int J Cancer. 2003 Mar 10;104(1):104-12.

[4]. Drabek D, et al. The expression of bacterial nitroreductase in transgenic mice results in specific cell killing by the prodrug CB1954. Gene Ther. 1997 Feb;4(2):93-100.

 Chemical & Physical Properties

Density 1.7±0.1 g/cm3
Boiling Point 427.2±45.0 °C at 760 mmHg
Melting Point 173 °C
Molecular Formula C9H8N4O5
Molecular Weight 252.184
Flash Point 212.2±28.7 °C
Exact Mass 252.049469
PSA 137.74000
LogP 1.28
Vapour Pressure 0.0±1.0 mmHg at 25°C
Index of Refraction 1.715

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
CV2345000
CHEMICAL NAME :
Benzamide, 5-(1-aziridinyl)-2,4-dinitro-
CAS REGISTRY NUMBER :
21919-05-1
LAST UPDATED :
199612
DATA ITEMS CITED :
10
MOLECULAR FORMULA :
C9-H8-N4-O5
MOLECULAR WEIGHT :
252.21

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
29 mg/kg
TOXIC EFFECTS :
Gastrointestinal - gastritis Gastrointestinal - ulceration or bleeding from stomach Blood - hemorrhage
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
22 mg/kg
TOXIC EFFECTS :
Gastrointestinal - gastritis Gastrointestinal - ulceration or bleeding from stomach Blood - hemorrhage
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
22 mg/kg
TOXIC EFFECTS :
Gastrointestinal - gastritis Gastrointestinal - ulceration or bleeding from stomach Blood - hemorrhage
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraduodenal
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
10 mg/kg
TOXIC EFFECTS :
Gastrointestinal - gastritis Gastrointestinal - ulceration or bleeding from stomach Blood - hemorrhage
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
176 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value

MUTATION DATA

TYPE OF TEST :
DNA damage
TEST SYSTEM :
Rodent - hamster Lung
DOSE/DURATION :
10 umol/L
REFERENCE :
BCPCA6 Biochemical Pharmacology. (Pergamon Press Inc., Maxwell House, Fairview Park, Elmsford, NY 10523) V.1- 1958- Volume(issue)/page/year: 37,4661,1988

 Safety Information

Personal Protective Equipment Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
RIDADR NONH for all modes of transport
HS Code 2933990090

 Customs

HS Code 2933990090
Summary 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Articles29

More Articles
An unusually cold active nitroreductase for prodrug activations

Bioorg. Med. Chem. 20(11) , 3540-50, (2012)

A set of PCR primers based on the genome sequence were used to clone a gene encoding a hypothetical nitroreductases (named as Ssap-NtrB) from uropathogenic staphylococcus, Staphylococcus saprophyticus...

uvrB gene deletion enhances SOS chromotest sensitivity for nitroreductases that preferentially generate the 4-hydroxylamine metabolite of the anti-cancer prodrug CB1954.

J. Biotechnol. 150(1) , 190-4, (2010)

CB1954 is an anti-cancer prodrug that can be reduced at either of two nitro groups to form cytotoxic metabolites. We describe here two efficient and previously uncharacterized nitroreductases, YfkO fr...

CB 1954: from the Walker tumor to NQO2 and VDEPT.

Curr. Pharm. Des. 9(26) , 2091-104, (2003)

CB 1954 [5-(aziridin-1-yl)-2,4-dinitrobenzamide] has been the subject of continued interest for over 30 years. As an anti-cancer agent, it represents one of the very few examples of a compound that sh...

 Synonyms

5-(1-Aziridinyl)-2,4-dinitrobenzamide
2,4-Dinitro-5-ethyleneiminobenzamide
2,4-Dinitroethyleneiminobenzamide
5-(aziridyn-1-yl)-2,4-dinitrobenzamide
Benzamide, 5-(1-aziridinyl)-2,4-dinitro-
5-Aziridinyl-2,4-dinitrobenzamide
CB-1954
5-(Aziridin-1-yl)-2,4-dinitrobenzamide
Tretazicar
1 (5 carbamoyl 2,4 dinitrophenyl)aziridine
UNII-7865D5D01M
5-aziridino-2,4-dinitrobenzamide
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