Synonym
Remimazolam besylate; CNS7056B; CNS-7056B; CNS 7056B
IUPAC/Chemical Name
4H-Imidazo(1,2-a)(1,4)benzodiazepine-4-propanoic acid, 8-bromo-1-methyl-6-(2-pyridinyl)-, (4S)-, methyl ester, benzenesulfonate (1:1)
InChi Key
QMTKNJZIWGTNTE-LMOVPXPDSA-N
InChi Code
InChI=1S/C21H19BrN4O2.C6H6O3S/c1-13-12-24-21-17(7-9-19(27)28-2)25-20(16-5-3-4-10-23-16)15-11-14(22)6-8-18(15)26(13)21;7-10(8,9)6-4-2-1-3-5-6/h3-6,8,10-12,17H,7,9H2,1-2H3;1-5H,(H,7,8,9)/t17-;/m0./s1
SMILES Code
O=C(OC)CC[C@H]1C2=NC=C(C)N2C3=CC=C(Br)C=C3C(C4=NC=CC=C4)=N1.O=S(C5=CC=CC=C5)(O)=O
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
597.48
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: Sheng XY, Liang Y, Yang XY, Li LE, Ye X, Zhao X, Cui YM. Safety, pharmacokinetic and pharmacodynamic properties of single ascending dose and continuous infusion of remimazolam besylate in healthy Chinese volunteers. Eur J Clin Pharmacol. 2020 Mar;76(3):383-391. doi: 10.1007/s00228-019-02800-3. Epub 2019 Dec 23. PMID: 31873765.
2: Masui K. Remimazolam besilate, a benzodiazepine, has been approved for general anesthesia!! J Anesth. 2020 Aug;34(4):479-482. doi: 10.1007/s00540-020-02755-1. Epub 2020 Mar 10. PMID: 32157465.
3: Hu K, Xiang Q, Wang Z, Sheng X, Li L, Liang Y, Zhao X, Ye X, Cui Y. Effects of Vitamin D Receptor, Cytochrome P450 3A, and Cytochrome P450 Oxidoreductase Genetic Polymorphisms on the Pharmacokinetics of Remimazolam in Healthy Chinese Volunteers. Clin Pharmacol Drug Dev. 2021 Jan;10(1):22-29. doi: 10.1002/cpdd.797. Epub 2020 Apr 6. PMID: 32250057.
