Synonym
Cgs 18320B; Cgs18320B; Cgs-18320B
IUPAC/Chemical Name
Butanedioic acid, compd. with 4,4'-(1H-imidazol-1-ylmethylene)bis(benzonitrile) (1:2)
InChi Key
CQNUKIDBVQOPAZ-UHFFFAOYSA-N
InChi Code
InChI=1S/2C18H12N4.C4H6O4/c2*19-11-14-1-5-16(6-2-14)18(22-10-9-21-13-22)17-7-3-15(12-20)4-8-17;5-3(6)1-2-4(7)8/h2*1-10,13,18H;1-2H2,(H,5,6)(H,7,8)
SMILES Code
O=C(O)CCC(O)=O.N#CC1=CC=C(C(C2=CC=C(C=C2)C#N)N3C=CN=C3)C=C1.N#CC4=CC=C(C(C5=CC=C(C=C5)C#N)N6C=CN=C6)C=C4
Purity
>98% (or refer to the Certificate of Analysis)
Shipping Condition
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.
Storage Condition
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).
Solubility
Soluble in DMSO
Shelf Life
>2 years if stored properly
Drug Formulation
This drug may be formulated in DMSO
Stock Solution Storage
0 - 4 C for short term (days to weeks), or -20 C for long term (months).
HS Tariff Code
2934.99.9001
Preparing Stock Solutions
The following data is based on the
product
molecular weight
686.73
Batch specific molecular weights may vary
from batch to batch
due to the degree of hydration, which will
affect the solvent
volumes required to prepare stock solutions.
| Concentration / Solvent Volume / Mass |
1 mg |
5 mg |
10 mg |
| 1 mM |
1.15 mL |
5.76 mL |
11.51 mL |
| 5 mM |
0.23 mL |
1.15 mL |
2.3 mL |
| 10 mM |
0.12 mL |
0.58 mL |
1.15 mL |
| 50 mM |
0.02 mL |
0.12 mL |
0.23 mL |
1: Bhatnagar AS, Häusler A, Schieweck K, Browne LJ, Bowman R, Steele RE. Novel aromatase inhibitors. J Steroid Biochem Mol Biol. 1990 Nov 20;37(3):363-7. doi: 10.1016/0960-0760(90)90485-4. PMID: 2147860.
2: Van Roey P, Bullion KA, Osawa Y, Browne LJ, Bowman RM, Braun DG. Structure- activity studies of non-steroidal aromatase inhibitors: the crystal and molecular structures of CGS 16949A and CGS 18320B. J Enzyme Inhib. 1991;5(2):119-32. doi: 10.3109/14756369109069065. PMID: 1669441.
3: Odum J, Ashby J. Detection of aromatase inhibitors in vitro using rat ovary microsomes. Toxicol Lett. 2002 Mar 24;129(1-2):119-22. doi: 10.1016/s0378-4274(01)00521-5. PMID: 11879982.
4: Kadohama N, Yarborough C, Zhou D, Chen S, Osawa Y. Kinetic properties of aromatase mutants Pro308Phe, Asp309Asn, and Asp309Ala and their interactions with aromatase inhibitors. J Steroid Biochem Mol Biol. 1992 Dec;43(7):693-701. doi: 10.1016/0960-0760(92)90295-t. PMID: 1472461.
5: Bullion KA, Osawa Y, Braun DG. Reversible inhibition of human placental microsomal aromatase by CGS 18320B and other non-steroidal compounds. Endocr Res. 1990;16(2):255-67. doi: 10.1080/07435809009033004. PMID: 2140551.
