SML3467

Remimazolam

≥98% (HPLC)

• Synonym(s): (S)-Methyl 3-(8-bromo-1-methyl-6-(pyridin-2-yl)-4H-benzo[f]imidazo[1,2-a][1,4]diazepin-4-yl)propanoate, CNS 7054 methyl ester, CNS 7056, CNS-7054 methyl ester, CNS-7056, CNS7054 methyl ester, CNS7056, Methyl 3-{(4S)-8-bromo-1-methyl-6-(pyridin-2-yl)-4H-imidazo[1,2-a][1,4]benzodiazepin-4-yl}propanoate, ONO 2745, ONO-2745, ONO2745
• Empirical Formula (Hill Notation): C₂₁H₁₉BrN₄O₂
• CAS Number: 308242-62-8
• Molecular Weight: 439.31
• MDL number: MFCD18633229
• UNSPSC Code: 12352200

Properties

• Quality Level: 100
• Assay: ≥98% (HPLC)
• form: powder
• drug control: USDEA Schedule IV
• color: white to beige
• solubility: DMSO: 2 mg/mL, clear
• storage temp.: -10 to -25°C
• SMILES string: CC1=CN=C2[C@H](CCC(OC)=O)N=C(C3=CC=CC=N3)C4=CC(Br)=CC=C4N12
• InChI: 1S/C21H19BrN4O2/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/h3-6,8,10-12,17H,7,9H2,1-2H3/t17-/m0/s1
• InChI key: CYHWMBVXXDIZNZ-KRWDZBQOSA-N

Description

Biochem/physiol Actions

GABAA receptor positive allosteric modulator (PAM) that causes fast onset and short duration of sedative action in vivo with rapid recovery.

Remimazolam (CNS 7056) is a benzodiazepine derivative with positive allosteric modulator (PAM) activity toward γ-aminobutyric acid type A (GABAA) receptor (pKi = 7.53/7.50/7.56 against 2.5 nM flunitrazepam for binding human/rat/yucatan micropig brain homogenates; pEC50/Emax = 6.44/375% (α1β2γ2), 6.18/186% (α2β2γ2), 6.04/210% (α3β2γ2), 5.86/289% (α5β2γ2s) by whole cell patch clamp using cells expressing respective rat αβγ complex). Intravenous injection (25 mg/kg rats, 15-30 mg/kg mice) causes fast onset and short duration of sedative action with rapid recovery when compared with midazolam.

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H336
• Precautionary Statements: P261 - P271 - P304 + P340 + P312 - P403 + P233 - P405 - P501
• Hazard Classifications: STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable