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Pharmaceutical Reference Standards

Piperacillin Monohydrate

Picture of Piperacillin Monohydrate
CAT No: SZ-P048001
CAS No: 66258-76-2
Mol.F. : C23H27N5O7S : H2O
Mol.Wt. : 517.6 : 18.0
Inv. Status: In Stock
Rel. CAS No : 61477-96-1 (Anhydrous) ; 59703-84-3 (Na salt) ; 87366-94-7 (K salt)
SZ-P048001
CAS No:66258-76-2
Mol.F.: C23H27N5O7S : H2O
Mol.Wt.: 517.6 : 18.0
Inv. Status: In Stock
Rel. CAS No : 61477-96-1 (Anhydrous) ; 59703-84-3 (Na salt) ; 87366-94-7 (K salt)

Piperacillin EP Impurity A

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CAT No: SZ-P048002
CAS No: 69-53-4
Mol.F. : C16H19N3O4S
Mol.Wt. : 349.4
Inv. Status: Custom Synthesis
Rel. CAS No : 69-52-3 (Na salt) ; 23277-71-6 (K salt) ; 52732-58-8 (Sulfate salt)
Rel. CAT No : SZ-S055006,
SZ-P048002
CAS No:69-53-4
Mol.F.: C16H19N3O4S
Mol.Wt.: 349.4
Inv. Status: Custom Synthesis
Rel. CAS No : 69-52-3 (Na salt) ; 23277-71-6 (K salt) ; 52732-58-8 (Sulfate salt)

Piperacillin EP Impurity B

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CAT No: SZ-P048003
CAS No: 2649505-14-4
Mol.F. : C23H29N5O8S
Mol.Wt. : 535.6
Inv. Status: In Stock
SZ-P048003
CAS No:2649505-14-4
Mol.F.: C23H29N5O8S
Mol.Wt.: 535.6
Inv. Status: In Stock

Piperacillin EP Impurity C

Picture of Piperacillin EP Impurity C
CAT No: SZ-P048004
CAS No: 2649505-15-5
Mol.F. : C22H29N5O6S
Mol.Wt. : 491.6
Inv. Status: In Stock
SZ-P048004
CAS No:2649505-15-5
Mol.F.: C22H29N5O6S
Mol.Wt.: 491.6
Inv. Status: In Stock

Piperacillin EP Impurity D

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CAT No: SZ-P048005
CAS No: 65772-67-0
Mol.F. : C39H44N8O10S2
Mol.Wt. : 849.0
Inv. Status: In Stock
SZ-P048005
CAS No:65772-67-0
Mol.F.: C39H44N8O10S2
Mol.Wt.: 849.0
Inv. Status: In Stock

Piperacillin EP Impurity E

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CAT No: SZ-P048006
CAS No: 59702-31-7
Mol.F. : C6H10N2O2
Mol.Wt. : 142.2
Inv. Status: In Stock
Rel. CAS No : 1913252-86-4 (Na salt)
SZ-P048006
CAS No:59702-31-7
Mol.F.: C6H10N2O2
Mol.Wt.: 142.2
Inv. Status: In Stock
Rel. CAS No : 1913252-86-4 (Na salt)

Piperacillin EP Impurity F

Picture of Piperacillin EP Impurity F
CAT No: SZ-P048007
CAS No: NA
Mol.F. : C25H31N5O9S
Mol.Wt. : 577.6
Inv. Status: In Stock
SZ-P048007
CAS No:NA
Mol.F.: C25H31N5O9S
Mol.Wt.: 577.6
Inv. Status: In Stock

Piperacillin EP Impurity T

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CAT No: SZ-P048008
CAS No: 2170771-53-4
Mol.F. : C46H54N10O14S2
Mol.Wt. : 1035.1
Inv. Status: In Stock
SZ-P048008
CAS No:2170771-53-4
Mol.F.: C46H54N10O14S2
Mol.Wt.: 1035.1
Inv. Status: In Stock

Piperacillin EP Impurity G

Picture of Piperacillin EP Impurity G
CAT No: SZ-P048009
CAS No: 63422-71-9
Mol.F. : C15H17N3O5
Mol.Wt. : 319.3
Inv. Status: In Stock
Rel. CAS No : 82778-04-9 (Na salt)
SZ-P048009
CAS No:63422-71-9
Mol.F.: C15H17N3O5 
Mol.Wt.: 319.3
Inv. Status: In Stock
Rel. CAS No : 82778-04-9 (Na salt)

Piperacillin EP Impurity H

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CAT No: SZ-P048010
CAS No: 551-16-6
Mol.F. : C8H12N2O3S
Mol.Wt. : 216.3
Inv. Status: In Stock
Rel. CAS No : 1203-85-6 (Na salt) ; 13833-83-5 (K salt) ; 35195-89-2 (Ca salt) ; 57218-58-3 (HCl salt)
SZ-P048010
CAS No:551-16-6
Mol.F.: C8H12N2O3S 
Mol.Wt.: 216.3
Inv. Status: In Stock
Rel. CAS No : 1203-85-6 (Na salt) ; 13833-83-5 (K salt) ; 35195-89-2 (Ca salt) ; 57218-58-3 (HCl salt)

Piperacillin Impurity J

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CAT No: SZ-P048012
CAS No: NA
Mol.F. : C23H27N509S
Mol.Wt. : 549.6
Inv. Status: Limited Stock
SZ-P048012
CAS No:NA
Mol.F.: C23H27N509S 
Mol.Wt.: 549.6
Inv. Status: Limited Stock

Piperacillin EP Impurity S

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CAT No: SZ-P048013
CAS No: NA
Mol.F. : C31H37N7O9S2
Mol.Wt. : 715.8
Inv. Status: In Stock
SZ-P048013
CAS No:NA
Mol.F.: C31H37N7O9S2 
Mol.Wt.: 715.8
Inv. Status: In Stock

Piperacillin Sulfoxide

Picture of Piperacillin Sulfoxide
CAT No: SZ-P048014
CAS No: 67275-27-8
Mol.F. : C23H27N5O8S
Mol.Wt. : 533.6
Inv. Status: In Stock
SZ-P048014
CAS No:67275-27-8
Mol.F.: C23H27N5O8S 
Mol.Wt.: 533.6
Inv. Status: In Stock

Piperacillin EP Impurity N

Picture of Piperacillin EP Impurity N
CAT No: SZ-P048015
CAS No: NA
Mol.F. : C23H27N5O7S
Mol.Wt. : 517.6
Inv. Status: In Stock
SZ-P048015
CAS No:NA
Mol.F.: C23H27N5O7S 
Mol.Wt.: 517.6
Inv. Status: In Stock

Piperacillin Methyl Ester

Picture of Piperacillin Methyl Ester
CAT No: SZ-P048016
CAS No: 65700-41-6
Mol.F. : C24H29N5O7S
Mol.Wt. : 531.6
Inv. Status: In Stock
SZ-P048016
CAS No:65700-41-6
Mol.F.: C24H29N5O7S 
Mol.Wt.: 531.6
Inv. Status: In Stock

Piperacillin Impurity 1

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CAT No: SZ-P048017
CAS No: NA
Mol.F. : C17H17N3O5S
Mol.Wt. : 375.4
Inv. Status: Under Synthesis
Rel. CAT No : SZ-A026026,
SZ-P048017
CAS No:NA
Mol.F.: C17H17N3O5S 
Mol.Wt.: 375.4
Inv. Status: Under Synthesis

Piperacillin Open Ring Methyl Ester

Picture of Piperacillin Open Ring Methyl Ester
CAT No: SZ-P048018
CAS No: NA
Mol.F. : C24H31N5O8S
Mol.Wt. : 549.6
Inv. Status: In Stock
SZ-P048018
CAS No:NA
Mol.F.: C24H31N5O8S 
Mol.Wt.: 549.6
Inv. Status: In Stock

piperacillin Open Ring Dimer

Picture of piperacillin Open Ring Dimer
CAT No: SZ-P048019
CAS No: NA
Mol.F. : C46H56N10O15S2
Mol.Wt. : 1053.2
Inv. Status: Custom Synthesis
SZ-P048019
CAS No:NA
Mol.F.: C46H56N10O15S2 
Mol.Wt.: 1053.2
Inv. Status: Custom Synthesis

Piperacillin Impurity 4

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CAT No: SZ-P048020
CAS No: NA
Mol.F. : C41H48N8O10S2
Mol.Wt. : 877.0
Inv. Status: Custom Synthesis
SZ-P048020
CAS No:NA
Mol.F.: C41H48N8O10S2 
Mol.Wt.: 877.0
Inv. Status: Custom Synthesis

Piperacillin Impurity 6

Picture of Piperacillin Impurity 6
CAT No: SZ-P048022
CAS No: NA
Mol.F. : C23H29N5O8S
Mol.Wt. : 535.6
Inv. Status: In Stock
SZ-P048022
CAS No:NA
Mol.F.: C23H29N5O8S
Mol.Wt.: 535.6
Inv. Status: In Stock

Piperacillin EP Impurity P

Picture of Piperacillin EP Impurity P
CAT No: SZ-P048023
CAS No: NA
Mol.F. : C31H34N6O8S
Mol.Wt. : 650.7
Inv. Status: In Stock
SZ-P048023
CAS No:NA
Mol.F.: C31H34N6O8S 
Mol.Wt.: 650.7
Inv. Status: In Stock

Piperacillin EP Impurity R

Picture of Piperacillin EP Impurity R
CAT No: SZ-P048024
CAS No: NA
Mol.F. : C39H46N8O11S2
Mol.Wt. : 867.0
Inv. Status: Limited Stock
SZ-P048024
CAS No:NA
Mol.F.: C39H46N8O11S2 
Mol.Wt.: 867.0
Inv. Status: Limited Stock

Piperacillin EP Impurity J

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CAT No: SZ-P048025
CAS No: 2170771-47-6
Mol.F. : C17H20N4O6
Mol.Wt. : 376.4
Inv. Status: In Stock
SZ-P048025
CAS No:2170771-47-6
Mol.F.: C17H20N4O6 
Mol.Wt.: 376.4
Inv. Status: In Stock

Piperacillin EP Impurity B (2Na salt)

Picture of Piperacillin EP Impurity B (2Na salt)
CAT No: SZ-P048026
CAS No: NA
Mol.F. : C23H29N5O8S : 2Na
Mol.Wt. : 535.6 : 2(23.0)
Inv. Status: Out of Stock
Rel. CAS No : 2649505-14-4 (free base)
SZ-P048026
CAS No:NA
Mol.F.: C23H29N5O8S : 2Na
Mol.Wt.: 535.6 : 2(23.0)
Inv. Status: Out of Stock
Rel. CAS No : 2649505-14-4 (free base)

Piperacillin EP Impurity M

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CAT No: SZ-P048027
CAS No: 64844-70-8
Mol.F. : C23H29N5O8S
Mol.Wt. : 535.6
Inv. Status: In Stock
SZ-P048027
CAS No:64844-70-8
Mol.F.: C23H29N5O8S 
Mol.Wt.: 535.6
Inv. Status: In Stock

Piperacillin EP Impurity K

Picture of Piperacillin EP Impurity K
CAT No: SZ-P048028
CAS No: NA
Mol.F. : C23H27N5O7S
Mol.Wt. : 517.6
Inv. Status: In Stock
SZ-P048028
CAS No:NA
Mol.F.: C23H27N5O7S 
Mol.Wt.: 517.6
Inv. Status: In Stock

Piperacillin

Picture of Piperacillin
CAT No: SZ-P048032
CAS No: 61477-96-1
Mol.F. : C23H27N5O7S
Mol.Wt. : 517.6
Inv. Status: Custom Synthesis
Rel. CAS No : 66258-76-2 (hydrate) ; 59703-84-3 (Na salt) ; 87366-94-7 (K salt)
SZ-P048032
CAS No:61477-96-1
Mol.F.: C23H27N5O7S
Mol.Wt.: 517.6
Inv. Status: Custom Synthesis
Rel. CAS No : 66258-76-2 (hydrate) ; 59703-84-3 (Na salt) ; 87366-94-7 (K salt)

Piperacillin Sodium salt

Picture of Piperacillin Sodium salt
CAT No: SZ-P048033
CAS No: 59703-84-3
Mol.F. : C23H27N5O7S : Na
Mol.Wt. : 517.6 : 23.0
Inv. Status: Custom Synthesis
Rel. CAS No : 66258-76-2 (hydrate) ; 61477-96-1 (Anhydrous) ; 87366-94-7 (K salt)
SZ-P048033
CAS No:59703-84-3
Mol.F.: C23H27N5O7S : Na
Mol.Wt.: 517.6 : 23.0
Inv. Status: Custom Synthesis
Rel. CAS No : 66258-76-2 (hydrate) ; 61477-96-1 (Anhydrous) ; 87366-94-7 (K salt)

Piperacillin Potassium salt

Picture of Piperacillin Potassium salt
CAT No: SZ-P048034
CAS No: 87366-94-7
Mol.F. : C23H27N5O7S : K
Mol.Wt. : 517.6 : 39.1
Inv. Status: Custom Synthesis
Rel. CAS No : 66258-76-2 (hydrate) ; 59703-84-3 (Na salt) ; 61477-96-1 (Anhydrous)
SZ-P048034
CAS No:87366-94-7
Mol.F.: C23H27N5O7S : K
Mol.Wt.: 517.6 : 39.1
Inv. Status: Custom Synthesis
Rel. CAS No : 66258-76-2 (hydrate) ; 59703-84-3 (Na salt) ; 61477-96-1 (Anhydrous)

Piperacillin EP Impurity I

Picture of Piperacillin EP Impurity I
CAT No: SZ-P048044
CAS No: 13833-89-1
Mol.F. : C6H11NO3S
Mol.Wt. : 177.2
Inv. Status: In Stock
Rel. CAS No : 67318-68-7 (K salt)
Rel. CAT No : SZ-P044012,
SZ-P048044
CAS No:13833-89-1
Mol.F.: C6H11NO3S
Mol.Wt.: 177.2
Inv. Status: In Stock
Rel. CAS No : 67318-68-7 (K salt)

Piperacillin Impurity 7

Picture of Piperacillin Impurity 7
CAT No: SZ-P048046
CAS No: 64817-22-7
Mol.F. : C23H29N5O8S
Mol.Wt. : 535.6
Inv. Status: In Stock
SZ-P048046
CAS No:64817-22-7
Mol.F.: C23H29N5O8S
Mol.Wt.: 535.6
Inv. Status: In Stock

Piperacillin Impurity 8

Picture of Piperacillin Impurity 8
CAT No: SZ-P048048
CAS No: 1449784-97-7
Mol.F. : C23H29N5O8S
Mol.Wt. : 535.6
Inv. Status: Custom Synthesis
SZ-P048048
CAS No:1449784-97-7
Mol.F.: C23H29N5O8S
Mol.Wt.: 535.6
Inv. Status: Custom Synthesis

Piperacillin Impurity 9

Picture of Piperacillin Impurity 9
CAT No: SZ-P048049
CAS No: NA
Mol.F. : C23H29N5O8S
Mol.Wt. : 535.6
Inv. Status: Custom Synthesis
SZ-P048049
CAS No:NA
Mol.F.: C23H29N5O8S
Mol.Wt.: 535.6
Inv. Status: Custom Synthesis

Possible Nitroso Standards

N-Nitroso piperacilin Impurity-1

Picture of N-Nitroso piperacilin Impurity-1
CAT No: SZ-P048030
CAS No: NA
Mol.F. : C23H28N6O9S
Mol.Wt. : 564.6
Inv. Status: In Stock
SZ-P048030
CAS No:NA
Mol.F.: C23H28N6O9S
Mol.Wt.: 564.6
Inv. Status: In Stock

N-Nitroso piperacilin Impurity-2

Picture of N-Nitroso piperacilin Impurity-2
CAT No: SZ-P048031
CAS No: NA
Mol.F. : C22H28N6O7S
Mol.Wt. : 520.6
Inv. Status: Limited Stock
SZ-P048031
CAS No:NA
Mol.F.: C22H28N6O7S
Mol.Wt.: 520.6
Inv. Status: Limited Stock