Atracurium Besilate
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MedKoo CAT#: 317259

CAS#: 64228-81-5

Description: Atracurium Besilate is a neuromuscular-blocking drug or skeletal muscle relaxant in the category of non-depolarizing neuromuscular-blocking drugs, used adjunctively in anesthesia to facilitate endotracheal intubation and to provide skeletal muscle relaxation during surgery or mechanical ventilation. Atracurium is classified as an intermediate-duration non-depolarizing neuromuscular-blocking agent.


Chemical Structure

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Atracurium Besilate
CAS# 64228-81-5

Theoretical Analysis

MedKoo Cat#: 317259
Name: Atracurium Besilate
CAS#: 64228-81-5
Chemical Formula: C59H78N2O15S2+
Exact Mass:
Molecular Weight: 1087.32
Elemental Analysis: C, 65.17; H, 7.23; N, 2.58; O, 22.07; S, 2.95

Price and Availability

Size Price Availability Quantity
5.0mg USD 70.0 2 Weeks
10.0mg USD 80.0 2 Weeks
25.0mg USD 90.0 2 Weeks
50.0mg USD 120.0 2 Weeks
100.0mg USD 150.0 2 Weeks
200.0mg USD 250.0 2 Weeks
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Synonym: 33 A 74; A 74, 33; Atracurium; Atracurium Besilate; Atracurium Besylate; Atracurium Dibesylate; Besilate, Atracurium; BW 33A; BW-33A; BW33A; Glaxo Wellcome Brand of Atracurium Besilate; Pisa Brand of Atracurium Besilate; Relatrac; Tracrium; Wellcome Brand of Atracurium Besilate

IUPAC/Chemical Name: benzenesulfonate;5-[3-[1-[(3,4-dimethoxyphenyl)methyl]-6,7-dimethoxy-2-methyl-3,4-dihydro-1H-isoquinolin-2-ium-2-yl]propanoyloxy]pentyl 3-[1-[(3,4-dimethoxyphenyl)methyl]-6,7-dimethoxy-2-methyl-3,4-dihydro-1H-isoquinolin-2-ium-2-yl]propanoate

InChi Key: KTFFUISFKXNFHH-UHFFFAOYSA-N

InChi Code: InChI=1S/C53H72N2O12.C6H6O3S/c1-12-13-14-27-66-50(56)21-25-55(3)24-20-38-40(42(55)29-36-16-18-44(59-5)46(31-36)61-7)34-49(64-10)53(65-11)52(38)67-51(57)22-26-54(2)23-19-37-32-47(62-8)48(63-9)33-39(37)41(54)28-35-15-17-43(58-4)45(30-35)60-6;7-10(8,9)6-4-2-1-3-5-6/h15-18,30-34,41-42H,12-14,19-29H2,1-11H3;1-5H,(H,7,8,9)/q+2;

SMILES Code: O=C(OCCCCC)CC[N+]1(C)C(CC2=CC=C(OC)C(OC)=C2)C3=C(C(OC(CC[N+]4(C)C(CC5=CC=C(OC)C(OC)=C5)C6=C(C=C(OC)C(OC)=C6)CC4)=O)=C(OC)C(OC)=C3)CC1.O=S(C7=CC=CC=C7)(O)=O

Appearance: Solid powder

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, not in water

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 1087.32 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.

Recalculate based on batch purity %
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

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7: Yoo YC, Kim NY, Shin S, Choi YD, Hong JH, Kim CY, Park H, Bai SJ. The
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15: Galluzzi F, De Rensis F, Saleri R, Spattini G. Effect of urethral infusion of
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