Atracurium Besilate
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MedKoo CAT#: 317259

CAS#: 64228-81-5 (besilate)

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 (besilate)

Theoretical Analysis

MedKoo Cat#: 317259
Name: Atracurium Besilate
CAS#: 64228-81-5 (besilate)
Chemical Formula: C59H78N2O15S2+
Exact Mass: 0.00
Molecular Weight: 1,087.320
Elemental Analysis: C, 65.17; H, 7.23; N, 2.58; O, 22.07; S, 2.95

Price and Availability

Size Price Availability Quantity
50mg USD 350 2 Weeks
100mg USD 550 2 Weeks
200mg USD 950 2 Weeks
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Related CAS #: 64228-81-5 (besilate)    

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

More Info:

Biological target:
In vitro activity:
In vivo activity:

Preparing Stock Solutions

The following data is based on the product molecular weight 1,087.32 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
Formulation protocol:
In vitro protocol:
In vivo protocol:

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