Atracurium EP Impurity J

Atracurium EP Impurity J
Catalog No. KMA190040
CAS No. 80-18-2
Formula C7H8O3S
FW 172.2
Unit Price Stock
100 mg Enquire Enquire
Chemical Name Methyl benzenesulfonate
Purity >95%
Storage Store at 2-8 deg. C for long term storage
Shipping Product is stable to be Shipped at Room Temperature
Download MSDS

Related Products

(R)-(+)-Tetrahydropapaverine

(R)-(+)-Tetrahydropapaverine

CAS No. : 50896-90-7

CAT No. : KMA190005

Formula : C20H25NO4 

FW : 343.4

View Details
(R)-cis-5ξ-Methyl Atracurium Dibesylate

(R)-cis-5ξ-Methyl Atracurium Dibesylate

CAS No. : 1193104-82-3

CAT No. : KMA190006

Formula : C54H74N2O12 : 2(C6H5O3S)

FW : 943.2 : 2(157.2)

View Details
(R)-cis-5ξ-Methyl Atracurium TFA salt

(R)-cis-5ξ-Methyl Atracurium TFA salt

CAS No. : NA

CAT No. : KMA190007

Formula : C54H74N2O122 : 2(C2F3O2)

FW : 943.2 : 2(113.0)

View Details
(R)-Laudanosine

(R)-Laudanosine

CAS No. : 85-63-2

CAT No. : KMA190008

Formula : C21H27NO4 

FW :  357.5

View Details
(R)-N-Methyllaudanosine Iodide

(R)-N-Methyllaudanosine Iodide

CAS No. : 41431-32-7

CAT No. : KMA190009

Formula : C22H30NO4 : I

FW : 372.5 : 126.9

View Details
(R-cis, R'-trans)- Atracurium Chloride

(R-cis, R'-trans)- Atracurium Chloride

CAS No. : NA

CAT No. : KMA190001

Formula : C53H72N2O12 : 2(Cl)

FW : 929.2 : 2(35.5)

View Details
(R-trans, R'-trans)-Atracurium Trifluoro acetate

(R-trans, R'-trans)-Atracurium Trifluoro acetate

CAS No. : NA

CAT No. : KMA190004

Formula : C53H72N2O12 : 2(C2F3O2)

FW : 929.2 : 2(113.0)

View Details
(S)-(-)-Tetrahydropapaverine N-Acetyl-L-phenylalanine

(S)-(-)-Tetrahydropapaverine N-Acetyl-L-phenylalanine

CAS No. : NA

CAT No. : KMA190011

Formula : C20H25NO4 : C11H13NO3

FW : 343.4 : 207.2

View Details
Atracurium Besilate

Atracurium Besilate

CAS No. : 64228-81-5

CAT No. : KMA190013

Formula : C53H72N2O12 : 2(C6H5O3S)

FW : 157.2 : 2(157.2)

View Details
Atracurium Besilate EP Impurity A

Atracurium Besilate EP Impurity A

CAS No. : 155913-36-3

CAT No. : KMA190014

Formula : C52H69N2O12 : C6H5O3S

FW : 914.1 : 157.2

View Details
Atracurium Besilate EP Impurity C (Mixture of Diastereomers)

Atracurium Besilate EP Impurity C (Mixture of Diastereomers)

CAS No. : NA

CAT No. : KMA190015

Formula : C32H44NO8 : C6H5O3S

FW : 570.7 : 157.2

View Details
Atracurium Besylate EP Impurity B

Atracurium Besylate EP Impurity B

CAS No. : 64228-77-9

CAT No. : KMA190018

Formula : C51H66N2O12 

FW : 899.1

View Details
Atracurium cis-Quaternary Acid

Atracurium cis-Quaternary Acid

CAS No. : 1075727-06-8

CAT No. : KMA190020

Formula : C24H32NO6 : C6H5O3S

FW : 430.5 : 157.2

View Details
Atracurium cis-Quaternary methyl ester (Besylate)

Atracurium cis-Quaternary methyl ester (Besylate)

CAS No. : 1075726-88-3

CAT No. : KMA190022

Formula : C25H34NO6 : C6H5O3S

FW : 444.5 : 157.2

View Details
Atracurium EP Impurity A (TFA salt)

Atracurium EP Impurity A (TFA salt)

CAS No. : NA

CAT No. : KMA190024

Formula : C52H69N2O12 : C2F3O2

FW : 914.1 : 113.0

View Details
Atracurium EP impurity C (TFA salt)

Atracurium EP impurity C (TFA salt)

CAS No. : NA

CAT No. : KMA190026

Formula : C32H44NO8 : C2HF3O2

FW : 570.7 : 114.0

View Details
Atracurium EP Impurity D (TFA salt)

Atracurium EP Impurity D (TFA salt)

CAS No. : NA

CAT No. : KMA190028

Formula : C29H42NO7 : C2F3O2

FW : 516.7 : 113.0

View Details
Atracurium EP Impurity E (Besylate salt)

Atracurium EP Impurity E (Besylate salt)

CAS No. : 2892260-35-2

CAT No. : KMA190030

Formula : C24H32NO6 : C6H5O3S

FW : 430.5 : 157.2

View Details
Atracurium EP Impurity F (Besylate salt)

Atracurium EP Impurity F (Besylate salt)

CAS No. : 155913-37-4

CAT No. : KMA190032

Formula : C22H30NO4 : C6H5O3S

FW : 372.5 : 157.2

View Details
Atracurium EP impurity F Chloride

Atracurium EP impurity F Chloride

CAS No. : 23979-10-4

CAT No. : KMA190033

Formula : C22H30NO4 : Cl

FW : 372.5 : 35.5

View Details
Atracurium EP impurity F Iodide

Atracurium EP impurity F Iodide

CAS No. : 24948-17-2

CAT No. : KMA190034

Formula : C22H30NO4 : I

FW : 372.5 : 126.9

View Details
Atracurium EP impurity G

Atracurium EP impurity G

CAS No. : 1699-51-0

CAT No. : KMA190035

Formula : C21H27NO4 

FW : 357.5

View Details
Atracurium EP impurity G Hydrochloride

Atracurium EP impurity G Hydrochloride

CAS No. : 37545-26-9

CAT No. : KMA190036

Formula : C21H27NO4 : HCl

FW : 357.5 : 36.5

View Details
Atracurium EP Impurity I (2TFA salt)

Atracurium EP Impurity I (2TFA salt)

CAS No. : NA

CAT No. : KMA190038

Formula : C54H74N2O12 : 2(C2F3O2)

FW : 943.2 : 2(113.0)

View Details
Atracurium EP Impurity I (Besylate salt)

Atracurium EP Impurity I (Besylate salt)

CAS No. : NA

CAT No. : KMA190039

Formula : C54H74N2O12 : 2(C6H5O3S)

FW : 943.2 : 2(157.2)

View Details
Atracurium EP impurity K (2TFA salt)

Atracurium EP impurity K (2TFA salt)

CAS No. : NA

CAT No. : KMA190042

Formula : C54H74N2O12 : 2(C2F3O2)

FW : 943.2 : 2(113.0)

View Details
Atracurium EP Impurity K (Besylate salt)

Atracurium EP Impurity K (Besylate salt)

CAS No. : NA

CAT No. : KMA190043

Formula : C54H74N2O12 : 2(C6H5O3S)

FW : 943.2 : 2(157.2)

View Details
Atracurium Impurity 10

Atracurium Impurity 10

CAS No. : 1193104-95-8

CAT No. : KMA190044

Formula : C24H32NO6 : C6H5O3S

FW : 430.5 : 157.2

View Details
Atracurium Impurity 16

Atracurium Impurity 16

CAS No. : 20345-69-1

CAT No. : KMA190046

Formula : C20H21NO5

FW : 355.4

View Details
Atracurium Impurity 5

Atracurium Impurity 5

CAS No. : NA

CAT No. : KMA190051

Formula : C32H44NO8 : C2F3O2

FW : 570.7 : 113.0

View Details
Atracurium Impurity 8 (cis-Quaternary Alcohol)

Atracurium Impurity 8 (cis-Quaternary Alcohol)

CAS No. : NA

CAT No. : KMA190055

Formula : C29H42NO7 : C2F3O2

FW : 516.7 : 113.0

View Details
Atracurium Impurity 9 (Besylate salt)

Atracurium Impurity 9 (Besylate salt)

CAS No. : 1075726-90-7

CAT No. : KMA190058

Formula : C25H34NO6 : C6H5O3S

FW : 444.5 : 157.2

View Details
Atracurium Impurity A1 (trans-Monoquatenary)

Atracurium Impurity A1 (trans-Monoquatenary)

CAS No. : NA

CAT No. : KMA190059

Formula : C52H69N2O12 : C2F3O2

FW : 914.1 : 113.0

View Details
Atracurium Impurity A2 (cis-Monoquatenary) TFA salt

Atracurium Impurity A2 (cis-Monoquatenary) TFA salt

CAS No. : NA

CAT No. : KMA190062

Formula : C52H69N2O12 : C2F3O2

FW : 914.1 : 113.0

View Details
Atracurium Impurity C1 (trans-Monoacrylate) TFA salt

Atracurium Impurity C1 (trans-Monoacrylate) TFA salt

CAS No. : NA

CAT No. : KMA190066

Formula : C32H44NO8 : C2F3O2

FW : 570.7 : 113.0

View Details
Atracurium Impurity D1 (Besylate salt)

Atracurium Impurity D1 (Besylate salt)

CAS No. : 2922251-88-3

CAT No. : KMA190069

Formula : C29H42NO7 : C6H5O3S

FW : 516.7 : 157.2

View Details
Atracurium Impurity E (cis-Quaternary Acid) TFA salt

Atracurium Impurity E (cis-Quaternary Acid) TFA salt

CAS No. : NA

CAT No. : KMA190072

Formula : C24H32NO6 : C2F3O2

FW : 430.5 : 113.0

View Details
Atracurium Impurity M ((R-cis, R'-cis)-Atracurium)

Atracurium Impurity M ((R-cis, R'-cis)-Atracurium)

CAS No. : NA

CAT No. : KMA190073

Formula : C54H74N2O12 : 2(C2F3O2)

FW : 943.2 : 2(113.0)

View Details
Bisacrylate

Bisacrylate

CAS No. : 36840-85-4

CAT No. : KMA190075

Formula : C11H16O4

FW : 212.2

View Details
Cisatracurium EP Impurity K TFA salt

Cisatracurium EP Impurity K TFA salt

CAS No. : NA

CAT No. : KMA190080

Formula : C54H74N2O12 : 2(C2F3O2)

FW : 943.2 : 2(113.0)

View Details
Cisatracurium EP Impurity R (Oxalate salt)

Cisatracurium EP Impurity R (Oxalate salt)

CAS No. : 96687-52-4

CAT No. : KMA190081

Formula : C51H66N2O12 : 2C2H2O4

FW : 899.1 : 2(90.0)

View Details
Cis-Atracurium Trifluoroacetate

Cis-Atracurium Trifluoroacetate

CAS No. : NA

CAT No. : KMA190078

Formula : C53H72N2O12 : 2(C2F3O2)

FW : 929.2 : 2(113.0)

View Details
R-Tetrahydropapaverine

R-Tetrahydropapaverine

CAS No. : 876290-45-8

CAT No. : KMA190083

Formula : C20H25NO4 : C11H13NO3

FW : 343.4 : 207.2

View Details
Cis- Trans Atracurium Quaternary acid Trifluoroacetate salt

Cis- Trans Atracurium Quaternary acid Trifluoroacetate salt

CAS No. : NA

CAT No. : KMA190077

Formula : C24H32NO6 : C2F3O2

FW : 430.5 : 113.0

View Details
Atracurium cis-Quaternary methyl ester (Chloride)

Atracurium cis-Quaternary methyl ester (Chloride)

CAS No. : NA

CAT No. : KMA190023

Formula : C25H34NO6 : Cl

FW : 444.5 : 35.5

View Details
Atracurium EP Impurity E (Dihydrate)

Atracurium EP Impurity E (Dihydrate)

CAS No. : NA

CAT No. : KMA190031

Formula : C24H32NO6 : 2(H2O)

FW : 430.5 : 2(18.0)

View Details
Atracurium Impurity 8 (Trans-Quaternary Alcohol)

Atracurium Impurity 8 (Trans-Quaternary Alcohol)

CAS No. : NA

CAT No. : KMA190056

Formula : C29H42NO7 : Cl

FW : 516.7 : 35.5

View Details
Trans Atracurium Quaternary acid Trifluoroacetate salt

Trans Atracurium Quaternary acid Trifluoroacetate salt

CAS No. : NA

CAT No. : KMA190085

Formula : C24H32NO6 : C2F3O2

FW : 430.5 : 113.0

View Details
Trans Atracurium Quaternary methyl ester Trifluoroacetate salt

Trans Atracurium Quaternary methyl ester Trifluoroacetate salt

CAS No. : NA

CAT No. : KMA190087

Formula : C25H34NO6 : C2F3O2

FW : 444.6 : 113.0

View Details
(R)-trans-Atracurium Besylate

(R)-trans-Atracurium Besylate

CAS No. : 96946-46-2

CAT No. : KMA190010

Formula : C53H72N2O12 : 2(C6H5O3S)

FW : 929.2 : 2(157.2)

View Details
(R-cis, R'-trans)-Atracurium

(R-cis, R'-trans)-Atracurium

CAS No. : 96946-43-9

CAT No. : KMA190002

Formula : C53H72N2O12

FW : 929.2

View Details
(R-trans, R'-trans)-Atracurium

(R-trans, R'-trans)-Atracurium

CAS No. : 96946-45-1

CAT No. : KMA190003

Formula : C53H72N2O12

FW : 929.2

View Details
Atracurium

Atracurium

CAS No. : 64228-79-1

CAT No. : KMA190012

Formula : C53H72N2O12

FW : 929.2

View Details
Atracurium Besilate Impurity 4

Atracurium Besilate Impurity 4

CAS No. : NA

CAT No. : KMA190016

Formula : C32H44NO8 : C6H5O3S

FW : 570.7 : 157.2

View Details
Atracurium Besilate Impurity C2 Iodide

Atracurium Besilate Impurity C2 Iodide

CAS No. : NA

CAT No. : KMA190017

Formula : C32H44NO8 : I

FW : 570.7 : 126.9

View Details
Atracurium Besylate Impurity D2 Iodide (cis-Quaternary Alcohol)

Atracurium Besylate Impurity D2 Iodide (cis-Quaternary Alcohol)

CAS No. : NA

CAT No. : KMA190019

Formula : C29H42NO7 : I

FW : 516.7 : 126.9

View Details
Atracurium cis-Quaternary methyl ester

Atracurium cis-Quaternary methyl ester

CAS No. : 1075726-87-2

CAT No. : KMA190021

Formula : C25H34NO6

FW : 444.5

View Details
Atracurium EP impurity C

Atracurium EP impurity C

CAS No. : 86293-35-8

CAT No. : KMA190025

Formula : C32H44NO8

FW : 570.7

View Details
Atracurium EP Impurity D (Mixture of Diastereomers)

Atracurium EP Impurity D (Mixture of Diastereomers)

CAS No. : 87046-72-8

CAT No. : KMA190027

Formula : C29H42NO7

FW : 516.4

View Details
Atracurium EP Impurity D Iodide (Mixture of Diastereomers)

Atracurium EP Impurity D Iodide (Mixture of Diastereomers)

CAS No. : NA

CAT No. : KMA190029

Formula : C29H42NO7 : I

FW : 516.7 : 126.9

View Details
Atracurium EP Impurity H

Atracurium EP Impurity H

CAS No. : NA

CAT No. : KMA190037

Formula : C54H74N2O12

FW : 943.2

View Details
Atracurium EP impurity K

Atracurium EP impurity K

CAS No. : 2767988-79-2

CAT No. : KMA190041

Formula : C54H74N2O12

FW : 943.2

View Details
Atracurium Impurity 15

Atracurium Impurity 15

CAS No. : 86682-55-5

CAT No. : KMA190045

Formula : C20H25NO5

FW : 359.4

View Details
Atracurium Impurity 17

Atracurium Impurity 17

CAS No. : NA

CAT No. : KMA190047

Formula : C54H74N2O12

FW : 943.2

View Details
Atracurium Impurity 2

Atracurium Impurity 2

CAS No. : NA

CAT No. : KMA190048

Formula : C56H76N2O14

FW : 1001.2

View Details
Atracurium Impurity 2 (Iodide salt)

Atracurium Impurity 2 (Iodide salt)

CAS No. : NA

CAT No. : KMA190049

Formula : C56H76N2O14 : 2(I)

FW : 1001.2 : 2(126.9)

View Details
Atracurium Impurity 4

Atracurium Impurity 4

CAS No. : NA

CAT No. : KMA190050

Formula : C32H44NO8

FW : 570.7

View Details
Atracurium Impurity 6

Atracurium Impurity 6

CAS No. : 96946-50-8

CAT No. : KMA190052

Formula : C53H72N2O122 : C6H5O3S

FW : 929.2 : 157.2

View Details
Atracurium Impurity 7

Atracurium Impurity 7

CAS No. : NA

CAT No. : KMA190053

Formula : C53H72N2O12

FW : 929.2

View Details
Atracurium Impurity 7 (Iodide salt)

Atracurium Impurity 7 (Iodide salt)

CAS No. : NA

CAT No. : KMA190054

Formula : C53H72N2O12 : 2(I)

FW : 929.2 : 2(126.9)

View Details
Atracurium Impurity 9

Atracurium Impurity 9

CAS No. : 1075726-89-4

CAT No. : KMA190057

Formula : C25H34NO6

FW : 444.5

View Details
Atracurium Impurity A1 (trans-Monoquatenary) Free base

Atracurium Impurity A1 (trans-Monoquatenary) Free base

CAS No. : 2024603-91-4

CAT No. : KMA190060

Formula : C52H69N2O12

FW : 914.1

View Details
Atracurium Impurity A2 (cis-Monoquatenary)

Atracurium Impurity A2 (cis-Monoquatenary)

CAS No. : NA

CAT No. : KMA190061

Formula : C52H69N2O12

FW : 914.1

View Details
Atracurium Impurity C

Atracurium Impurity C

CAS No. : 119403-01-9

CAT No. : KMA190063

Formula : C32H44NO8

FW : 570.7

View Details
Atracurium Impurity C (Iodide salt)

Atracurium Impurity C (Iodide salt)

CAS No. : NA

CAT No. : KMA190064

Formula : C32H44NO8 : I

FW : 570.7 : 126.9

View Details
Atracurium Impurity C1 (trans-Monoacrylate)

Atracurium Impurity C1 (trans-Monoacrylate)

CAS No. : NA

CAT No. : KMA190065

Formula : C32H44NO8

FW : 570.7

View Details
Atracurium Impurity C2

Atracurium Impurity C2

CAS No. : NA

CAT No. : KMA190067

Formula : C32H44NO8

FW : 570.7

View Details
Atracurium Impurity D1

Atracurium Impurity D1

CAS No. : 2922251-87-2

CAT No. : KMA190068

Formula : C29H42NO7

FW : 516.7

View Details
Atracurium Impurity D1 (Iodide salt)

Atracurium Impurity D1 (Iodide salt)

CAS No. : NA

CAT No. : KMA190070

Formula : C29H42NO7 : I

FW : 516.7 : 126.9

View Details
Atracurium Impurity D2 (cis-Quaternary Alcohol)

Atracurium Impurity D2 (cis-Quaternary Alcohol)

CAS No. : 1100676-15-0

CAT No. : KMA190071

Formula : C29H42NO7

FW : 516.7

View Details
Atracurium Impurity M (R-cis, R'-cis)-Atracurium Free base

Atracurium Impurity M (R-cis, R'-cis)-Atracurium Free base

CAS No. : 1193104-84-5

CAT No. : KMA190074

Formula : C54H74N2O12

FW : 943.2

View Details
Cis- Trans Atracurium Quaternary acid

Cis- Trans Atracurium Quaternary acid

CAS No. : 172589-37-6

CAT No. : KMA190076

Formula : C24H32NO6

FW : 430.5

View Details
Cis, Trans-R,R Atracurium Besyl

Cis, Trans-R,R Atracurium Besyl

CAS No. : NA

CAT No. : KMA190079

Formula : C52H70N2O12 : 2(C6H6O3S)

FW : 915.1 : 2(158.2)

View Details
Trans Atracurium Quaternary acid

Trans Atracurium Quaternary acid

CAS No. : NA

CAT No. : KMA190084

Formula : C24H32NO6

FW : 430.5

View Details
Trans Atracurium Quaternary methyl ester

Trans Atracurium Quaternary methyl ester

CAS No. : 1474022-37-1

CAT No. : KMA190086

Formula : C25H34NO6

FW : 444.6

View Details
N-Desmethyl-transatracurium Besylate

N-Desmethyl-transatracurium Besylate

CAS No. : 2024603-92-5

CAT No. : KMA190082

Formula : C52H69N2O12 : C6H5O3S

FW : 914.1 : 157.2

View Details

About Us

K. M. Pharma Solution Pvt. Ltd., India (CIN: U72100GJ2023PTC141278), is a leading, innovation-driven company accredited by FDCA, GMP-GLP, ISO 9001:2015, and NABL (ISO/IEC 17025 & ISO 17034). Specializing in the design, synthesis, and characterization of pharmaceutical impurity standards and reference materials, we offer an extensive portfolio including nitrosamine impurities, pharmacopeial and non-pharmacopeial impurities, drug metabolites, glucuronides, process degradants, excipient-related impurities, unknown impurity isolation & structural elucidation, and stable isotope-labeled compounds.

As an integrated Contract Research, Development & Manufacturing Organization (CRDMO), we provide end-to-end scientific services — from early-stage discovery through to commercial supply — with a strong focus on quality, compliance, and customer satisfaction.

Contact Us

  • Unit No.101, Shivam Industrial park,
    Sarkhej-bavala NH=8A, At-Moraiya, Changodar,
    Ahmedabad (Gujarat), India - 382213
  • contact@kmpharma.in
  • +91 9898822121

© 2025 K.M.Pharma. All Rights Reserved