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Pharmaceutical Reference Standards

Cefprozil Monohydrate

Picture of Cefprozil Monohydrate
CAT No: SZ-C116001
CAS No: 121123-17-9
Mol.F. : C18H19N3O5S : H2O
Mol.Wt. : 389.4 : 18.0
Inv. Status: In Stock, 3-4 days for Dispatch
Rel. CAS No : 92665-29-7 (free base)
SZ-C116001
CAS No:121123-17-9
Mol.F.: C18H19N3O5S : H2O
Mol.Wt.: 389.4 : 18.0
Inv. Status: In Stock, 3-4 days for Dispatch
Rel. CAS No : 92665-29-7 (free base)

Cefprozil Monohydrate EP Impurity A

Picture of Cefprozil Monohydrate EP Impurity A
CAT No: SZ-C116002
CAS No: 22818-40-2
Mol.F. : C8H9NO3
Mol.Wt. : 167.2
Inv. Status: Custom Synthesis
Same As : SZ-C061002, SZ-A025010,
Rel. CAS No : 55361-61-0 (Na salt) ; 71839-16-2 (K salt) ; 52067-90-0 (HCl salt) ; 170690-13-8 (Sulfate salt)
SZ-C116002
CAS No:22818-40-2
Mol.F.: C8H9NO3
Mol.Wt.: 167.2
Inv. Status: Custom Synthesis
Same As : SZ-C061002, SZ-A025010,
Rel. CAS No : 55361-61-0 (Na salt) ; 71839-16-2 (K salt) ; 52067-90-0 (HCl salt) ; 170690-13-8 (Sulfate salt)

Cefprozil Monohydrate EP Impurity B

Picture of Cefprozil Monohydrate EP Impurity B
CAT No: SZ-C116003
CAS No: 50370-12-2
Mol.F. : C16H17N3O5S
Mol.Wt. : 363.4
Inv. Status: Custom Synthesis
Same As : SZ-C061030,
Rel. CAS No : 42284-83-3 (Na salt) ; 852474-72-7 (K salt) ; 1209009-15-3 (Sulfate salt) ; 78144-01-1 (HCl salt)
SZ-C116003
CAS No:50370-12-2
Mol.F.: C16H17N3O5S
Mol.Wt.: 363.4
Inv. Status: Custom Synthesis
Same As : SZ-C061030,
Rel. CAS No : 42284-83-3 (Na salt) ; 852474-72-7 (K salt) ; 1209009-15-3 (Sulfate salt) ; 78144-01-1 (HCl salt)

Cefprozil Monohydrate EP Impurity D

Picture of Cefprozil Monohydrate EP Impurity D
CAT No: SZ-C116005
CAS No: 106447-44-3
Mol.F. : C10H12N2O3S
Mol.Wt. : 240.3
Inv. Status: Custom Synthesis
Rel. CAS No : 151413-33-1 (K salt) ; 106455-66-7 (HCl salt)
SZ-C116005
CAS No:106447-44-3
Mol.F.: C10H12N2O3S
Mol.Wt.: 240.3
Inv. Status: Custom Synthesis
Rel. CAS No : 151413-33-1 (K salt) ; 106455-66-7 (HCl salt)

Cefprozil Monohydrate EP Impurity E

Picture of Cefprozil Monohydrate EP Impurity E
CAT No: SZ-C116006
CAS No: NA
Mol.F. : C26H26N4O7S
Mol.Wt. : 538.6
Inv. Status: Under Synthesis
SZ-C116006
CAS No:NA
Mol.F.: C26H26N4O7S
Mol.Wt.: 538.6
Inv. Status: Under Synthesis

Cefprozil Monohydrate EP Impurity F

Picture of Cefprozil Monohydrate EP Impurity F
CAT No: SZ-C116007
CAS No: 107937-01-9
Mol.F. : C10H12N2O3S
Mol.Wt. : 240.3
Inv. Status: Custom Synthesis
Rel. CAS No : 141140-39-8 (HCl salt) ; 151413-34-2 (K salt)
SZ-C116007
CAS No:107937-01-9
Mol.F.: C10H12N2O3S
Mol.Wt.: 240.3
Inv. Status: Custom Synthesis
Rel. CAS No : 141140-39-8 (HCl salt) ; 151413-34-2 (K salt)

Cefprozil Monohydrate EP Impurity G

Picture of Cefprozil Monohydrate EP Impurity G
CAT No: SZ-C116008
CAS No: NA
Mol.F. : C18H21N3O6S
Mol.Wt. : 407.4
Inv. Status: Limited Stock
SZ-C116008
CAS No:NA
Mol.F.: C18H21N3O6S
Mol.Wt.: 407.4
Inv. Status: Limited Stock

Cefprozil Monohydrate EP Impurity H

Picture of Cefprozil Monohydrate EP Impurity H
CAT No: SZ-C116009
CAS No: NA
Mol.F. : C26H26N4O7S
Mol.Wt. : 538.6
Inv. Status: Custom Synthesis
SZ-C116009
CAS No:NA
Mol.F.: C26H26N4O7S
Mol.Wt.: 538.6
Inv. Status: Custom Synthesis

Cefprozil Monohydrate EP Impurity I

Picture of Cefprozil Monohydrate EP Impurity I
CAT No: SZ-C116010
CAS No: NA
Mol.F. : C18H21N3O6S
Mol.Wt. : 407.4
Inv. Status: Out of Stock, Under Synthesis
SZ-C116010
CAS No:NA
Mol.F.: C18H21N3O6S
Mol.Wt.: 407.4
Inv. Status: Out of Stock, Under Synthesis

Cefprozil Monohydrate EP Impurity J

Picture of Cefprozil Monohydrate EP Impurity J
CAT No: SZ-C116011
CAS No: NA
Mol.F. : C26H26N4O7S
Mol.Wt. : 538.6
Inv. Status: Custom Synthesis
SZ-C116011
CAS No:NA
Mol.F.: C26H26N4O7S
Mol.Wt.: 538.6
Inv. Status: Custom Synthesis

Cefprozil Monohydrate EP Impurity K

Picture of Cefprozil Monohydrate EP Impurity K
CAT No: SZ-C116012
CAS No: NA
Mol.F. : C18H19N3O5S
Mol.Wt. : 389.4
Inv. Status: In Stock
SZ-C116012
CAS No:NA
Mol.F.: C18H19N3O5S
Mol.Wt.: 389.4
Inv. Status: In Stock

Cefprozil Monohydrate EP Impurity L

Picture of Cefprozil Monohydrate EP Impurity L
CAT No: SZ-C116013
CAS No: 203007-73-2
Mol.F. : C10H13NO4
Mol.Wt. : 211.2
Inv. Status: Custom Synthesis
Rel. CAS No : 245045-05-0 (HCl salt)
SZ-C116013
CAS No:203007-73-2
Mol.F.: C10H13NO4
Mol.Wt.: 211.2
Inv. Status: Custom Synthesis
Rel. CAS No : 245045-05-0 (HCl salt)

Cefprozil Monohydrate EP Impurity M

Picture of Cefprozil Monohydrate EP Impurity M
CAT No: SZ-C116014
CAS No: 1605314-84-8
Mol.F. : C21H23N3O7S
Mol.Wt. : 461.5
Inv. Status: Custom Synthesis
SZ-C116014
CAS No:1605314-84-8
Mol.F.: C21H23N3O7S
Mol.Wt.: 461.5
Inv. Status: Custom Synthesis

Cefprozil Monohydrate EP Impurity N

Picture of Cefprozil Monohydrate EP Impurity N
CAT No: SZ-C116015
CAS No: 1605314-85-9
Mol.F. : C21H23N3O7S
Mol.Wt. : 461.5
Inv. Status: Custom Synthesis
SZ-C116015
CAS No:1605314-85-9
Mol.F.: C21H23N3O7S
Mol.Wt.: 461.5
Inv. Status: Custom Synthesis

Cefprozil Delta-3 Isomer

Picture of Cefprozil Delta-3 Isomer
CAT No: SZ-C116016
CAS No: 1000980-59-5
Mol.F. : C18H19N3O5S
Mol.Wt. : 389.4
Inv. Status: Under Synthesis
SZ-C116016
CAS No:1000980-59-5
Mol.F.: C18H19N3O5S
Mol.Wt.: 389.4
Inv. Status: Under Synthesis

Cefprozil (Z)-Isomer

Picture of Cefprozil (Z)-Isomer
CAT No: SZ-C116017
CAS No: 121412-77-9
Mol.F. : C18H19N3O5S
Mol.Wt. : 389.4
Inv. Status: Out of Stock
Rel. CAS No : 92694-60-5 (Na salt) ; 2248550-04-9 (HCl salt)
SZ-C116017
CAS No:121412-77-9
Mol.F.: C18H19N3O5S
Mol.Wt.: 389.4
Inv. Status: Out of Stock
Rel. CAS No : 92694-60-5 (Na salt) ; 2248550-04-9 (HCl salt)

Cefprozil (E)-Isomer

Picture of Cefprozil (E)-Isomer
CAT No: SZ-C116018
CAS No: 92676-86-3
Mol.F. : C18H19N3O5S
Mol.Wt. : 389.4
Inv. Status: In Stock
SZ-C116018
CAS No:92676-86-3
Mol.F.: C18H19N3O5S
Mol.Wt.: 389.4
Inv. Status: In Stock

Methoxy Cefadroxil

Picture of Methoxy Cefadroxil
CAT No: SZ-C116019
CAS No: NA
Mol.F. : C17H19N3O6S
Mol.Wt. : 393.4
Inv. Status: Custom Synthesis
SZ-C116019
CAS No:NA
Mol.F.: C17H19N3O6S
Mol.Wt.: 393.4
Inv. Status: Custom Synthesis

Cefprozil Impurity CPZRC-4

Picture of Cefprozil Impurity CPZRC-4
CAT No: SZ-C116022
CAS No: NA
Mol.F. : C21H23N3O7S
Mol.Wt. : 461.5
Inv. Status: Custom Synthesis
SZ-C116022
CAS No:NA
Mol.F.: C21H23N3O7S
Mol.Wt.: 461.5
Inv. Status: Custom Synthesis

Cefprozil Impurity CPZRC-5

Picture of Cefprozil Impurity CPZRC-5
CAT No: SZ-C116023
CAS No: NA
Mol.F. : C26H26N4O7S
Mol.Wt. : 538.6
Inv. Status: Custom Synthesis
SZ-C116023
CAS No:NA
Mol.F.: C26H26N4O7S
Mol.Wt.: 538.6
Inv. Status: Custom Synthesis

Cefprozil

Picture of Cefprozil
CAT No: SZ-C116024
CAS No: 92665-29-7
Mol.F. : C18H19N3O5S
Mol.Wt. : 389.4
Inv. Status: Custom Synthesis
Rel. CAS No : 121123-17-9 (monohydrate)
SZ-C116024
CAS No:92665-29-7
Mol.F.: C18H19N3O5S
Mol.Wt.: 389.4
Inv. Status: Custom Synthesis
Rel. CAS No : 121123-17-9 (monohydrate)

Cefprozil EP Impurity A Sodium salt

Picture of Cefprozil EP Impurity A Sodium salt
CAT No: SZ-C116025
CAS No: 55361-61-0
Mol.F. : C8H9NO3 : Na
Mol.Wt. : 167.2 : 23.0
Inv. Status: Custom Synthesis
Same As : SZ-A025034, SZ-C061032,
Rel. CAS No : 22818-40-2 (free base) ; 71839-16-2 (K salt) ; 52067-90-0 (HCl salt) ; 170690-13-8 (Sulfate salt)
SZ-C116025
CAS No:55361-61-0
Mol.F.: C8H9NO3 : Na
Mol.Wt.: 167.2 : 23.0
Inv. Status: Custom Synthesis
Same As : SZ-A025034, SZ-C061032,
Rel. CAS No : 22818-40-2 (free base) ; 71839-16-2 (K salt) ; 52067-90-0 (HCl salt) ; 170690-13-8 (Sulfate salt)

Cefprozil EP Impurity A Potassium salt

Picture of Cefprozil EP Impurity A Potassium salt
CAT No: SZ-C116026
CAS No: 71839-16-2
Mol.F. : C8H9NO3 : K
Mol.Wt. : 167.2 : 39.1
Inv. Status: Custom Synthesis
Same As : SZ-C061033, SZ-A025033,
Rel. CAS No : 55361-61-0 (Na salt) ; 22818-40-2 (free base) ; 52067-90-0 (HCl salt) ; 170690-13-8 (Sulfate salt)
SZ-C116026
CAS No:71839-16-2
Mol.F.: C8H9NO3 : K
Mol.Wt.: 167.2 : 39.1
Inv. Status: Custom Synthesis
Same As : SZ-C061033, SZ-A025033,
Rel. CAS No : 55361-61-0 (Na salt) ; 22818-40-2 (free base) ; 52067-90-0 (HCl salt) ; 170690-13-8 (Sulfate salt)

Cefprozil EP Impurity A Hydrochloride

Picture of Cefprozil EP Impurity A Hydrochloride
CAT No: SZ-C116027
CAS No: 52067-90-0
Mol.F. : C8H9NO3 : HCl
Mol.Wt. : 167.2 : 36.5
Inv. Status: Custom Synthesis
Same As : SZ-C061031, SZ-A025032,
Rel. CAS No : 55361-61-0 (Na salt) ; 71839-16-2 (K salt) ; 22818-40-2 (free base) ; 170690-13-8 (Sulfate salt)
SZ-C116027
CAS No:52067-90-0
Mol.F.: C8H9NO3 : HCl
Mol.Wt.: 167.2 : 36.5
Inv. Status: Custom Synthesis
Same As : SZ-C061031, SZ-A025032,
Rel. CAS No : 55361-61-0 (Na salt) ; 71839-16-2 (K salt) ; 22818-40-2 (free base) ; 170690-13-8 (Sulfate salt)

Cefprozil EP Impurity A Sulfate salt

Picture of Cefprozil EP Impurity A Sulfate salt
CAT No: SZ-C116028
CAS No: 170690-13-8
Mol.F. : C8H9NO3 : 1/2(H2SO4)
Mol.Wt. : 167.2 : 1/2(98.1)
Inv. Status: Custom Synthesis
Same As : SZ-C061034, SZ-A025035,
Rel. CAS No : 55361-61-0 (Na salt) ; 71839-16-2 (K salt) ; 52067-90-0 (HCl salt) ; 22818-40-2 (free base)
SZ-C116028
CAS No:170690-13-8
Mol.F.: C8H9NO3 : 1/2(H2SO4)
Mol.Wt.: 167.2 : 1/2(98.1)
Inv. Status: Custom Synthesis
Same As : SZ-C061034, SZ-A025035,
Rel. CAS No : 55361-61-0 (Na salt) ; 71839-16-2 (K salt) ; 52067-90-0 (HCl salt) ; 22818-40-2 (free base)

Cefprozil EP Impurity B Sodium salt

Picture of Cefprozil EP Impurity B Sodium salt
CAT No: SZ-C116029
CAS No: 42284-83-3
Mol.F. : C16H17N3O5S : Na
Mol.Wt. : 363.4 : 23.0
Inv. Status: Custom Synthesis
Rel. CAS No : 50370-12-2 (free base) ; 852474-72-7 (K salt) ; 1209009-15-3 (Sulfate salt); 78144-01-1 (HCl salt)
SZ-C116029
CAS No:42284-83-3
Mol.F.: C16H17N3O5S : Na
Mol.Wt.: 363.4 : 23.0
Inv. Status: Custom Synthesis
Rel. CAS No : 50370-12-2 (free base) ; 852474-72-7 (K salt) ; 1209009-15-3 (Sulfate salt); 78144-01-1 (HCl salt)

Cefprozil EP Impurity B Potassium salt

Picture of Cefprozil EP Impurity B Potassium salt
CAT No: SZ-C116030
CAS No: 852474-72-7
Mol.F. : C16H17N3O5S : K
Mol.Wt. : 363.4 : 39.1
Inv. Status: Custom Synthesis
Rel. CAS No : 42284-83-3 (Na salt) ; 50370-12-2 (free base) ; 1209009-15-3 (Sulfate salt) ; 78144-01-1 (HCl salt)
SZ-C116030
CAS No:852474-72-7
Mol.F.: C16H17N3O5S : K
Mol.Wt.: 363.4 : 39.1
Inv. Status: Custom Synthesis
Rel. CAS No : 42284-83-3 (Na salt) ; 50370-12-2 (free base) ; 1209009-15-3 (Sulfate salt) ; 78144-01-1 (HCl salt)

Cefprozil EP Impurity B Sulfate salt

Picture of Cefprozil EP Impurity B Sulfate salt
CAT No: SZ-C116031
CAS No: 1209009-15-3
Mol.F. : C16H17N3O5S : H2SO4
Mol.Wt. : 363.4 : 98.1
Inv. Status: Custom Synthesis
Rel. CAS No : 42284-83-3 (Na salt) ; 852474-72-7 (K salt) ; 50370-12-2 (free base) ; 78144-01-1 (HCl salt)
SZ-C116031
CAS No:1209009-15-3
Mol.F.: C16H17N3O5S : H2SO4
Mol.Wt.: 363.4 : 98.1
Inv. Status: Custom Synthesis
Rel. CAS No : 42284-83-3 (Na salt) ; 852474-72-7 (K salt) ; 50370-12-2 (free base) ; 78144-01-1 (HCl salt)

Cefprozil EP Impurity B Hydrochloride

Picture of Cefprozil EP Impurity B Hydrochloride
CAT No: SZ-C116032
CAS No: 78144-01-1
Mol.F. : C16H17N3O5S : HCl
Mol.Wt. : 363.4 : 36.5
Inv. Status: Custom Synthesis
Rel. CAS No : 42284-83-3 (Na salt) ; 852474-72-7 (K salt) ; 1209009-15-3 (Sulfate salt) ; 50370-12-2 (free base)
SZ-C116032
CAS No:78144-01-1
Mol.F.: C16H17N3O5S : HCl
Mol.Wt.: 363.4 : 36.5
Inv. Status: Custom Synthesis
Rel. CAS No : 42284-83-3 (Na salt) ; 852474-72-7 (K salt) ; 1209009-15-3 (Sulfate salt) ; 50370-12-2 (free base)

Cefprozil EP Impurity D Potassium salt

Picture of Cefprozil EP Impurity D Potassium salt
CAT No: SZ-C116033
CAS No: 151413-33-1
Mol.F. : C10H12N2O3S : K
Mol.Wt. : 240.3 : 39.1
Inv. Status: Custom Synthesis
Rel. CAS No : 106447-44-3 (free base) ; 106455-66-7 (HCl salt)
SZ-C116033
CAS No:151413-33-1
Mol.F.: C10H12N2O3S : K
Mol.Wt.: 240.3 : 39.1
Inv. Status: Custom Synthesis
Rel. CAS No : 106447-44-3 (free base) ; 106455-66-7 (HCl salt)

Cefprozil EP Impurity D Hydrochloride

Picture of Cefprozil EP Impurity D Hydrochloride
CAT No: SZ-C116034
CAS No: 106455-66-7
Mol.F. : C10H12N2O3S : HCl
Mol.Wt. : 240.3 : 36.5
Inv. Status: Custom Synthesis
Rel. CAS No : 151413-33-1 (K salt) ; 106447-44-3 (free base)
SZ-C116034
CAS No:106455-66-7
Mol.F.: C10H12N2O3S : HCl
Mol.Wt.: 240.3 : 36.5
Inv. Status: Custom Synthesis
Rel. CAS No : 151413-33-1 (K salt) ; 106447-44-3 (free base)

Cefprozil EP Impurity F Hydrochloride

Picture of Cefprozil EP Impurity F Hydrochloride
CAT No: SZ-C116035
CAS No: 141140-39-8
Mol.F. : C10H12N2O3S : HCl
Mol.Wt. : 240.3 : 36.5
Inv. Status: Custom Synthesis
Rel. CAS No : 107937-01-9 (free base) ; 151413-34-2 (K salt)
SZ-C116035
CAS No:141140-39-8
Mol.F.: C10H12N2O3S : HCl
Mol.Wt.: 240.3 : 36.5
Inv. Status: Custom Synthesis
Rel. CAS No : 107937-01-9 (free base) ; 151413-34-2 (K salt)

Cefprozil EP Impurity F Potassium salt

Picture of Cefprozil EP Impurity F Potassium salt
CAT No: SZ-C116036
CAS No: 151413-34-2
Mol.F. : C10H12N2O3S : K
Mol.Wt. : 240.3 : 39.1
Inv. Status: Custom Synthesis
Rel. CAS No : 141140-39-8 (HCl salt) ; 107937-01-9 (free base)
SZ-C116036
CAS No:151413-34-2
Mol.F.: C10H12N2O3S : K
Mol.Wt.: 240.3 : 39.1
Inv. Status: Custom Synthesis
Rel. CAS No : 141140-39-8 (HCl salt) ; 107937-01-9 (free base)

Cefprozil EP Impurity L Hydrochloride

Picture of Cefprozil EP Impurity L Hydrochloride
CAT No: SZ-C116037
CAS No: 245045-05-0
Mol.F. : C10H13NO4 : HCl
Mol.Wt. : 211.2 : 36.5
Inv. Status: Custom Synthesis
Rel. CAS No : 203007-73-2
SZ-C116037
CAS No:245045-05-0
Mol.F.: C10H13NO4 : HCl
Mol.Wt.: 211.2 : 36.5
Inv. Status: Custom Synthesis
Rel. CAS No : 203007-73-2

Cefprozil (Z)-Isomer Sodium salt

Picture of Cefprozil (Z)-Isomer Sodium salt
CAT No: SZ-C116038
CAS No: 92694-60-5
Mol.F. : C18H19N3O5S : Na
Mol.Wt. : 389.4 : 23.0
Inv. Status: Custom Synthesis
Rel. CAS No : 121412-77-9
SZ-C116038
CAS No:92694-60-5
Mol.F.: C18H19N3O5S : Na
Mol.Wt.: 389.4 : 23.0
Inv. Status: Custom Synthesis
Rel. CAS No : 121412-77-9

Cefprozil (Z)-Isomer Hydrochloride

Picture of Cefprozil (Z)-Isomer Hydrochloride
CAT No: SZ-C116039
CAS No: 2248550-04-9
Mol.F. : C18H19N3O5S : HCl
Mol.Wt. : 389.4 : 36.5
Inv. Status: Custom Synthesis
Rel. CAS No : 92694-60-5 (Na salt)
SZ-C116039
CAS No:2248550-04-9
Mol.F.: C18H19N3O5S : HCl
Mol.Wt.: 389.4 : 36.5
Inv. Status: Custom Synthesis
Rel. CAS No : 92694-60-5 (Na salt)

Cefprozil L-Epimer

Picture of Cefprozil L-Epimer
CAT No: SZ-C116040
CAS No: 110764-35-7
Mol.F. : C18H19N3O5S
Mol.Wt. : 389.4
Inv. Status: Custom Synthesis
SZ-C116040
CAS No:110764-35-7
Mol.F.: C18H19N3O5S
Mol.Wt.: 389.4
Inv. Status: Custom Synthesis

O-Acyl Cefprozil

Picture of O-Acyl Cefprozil
CAT No: SZ-C116041
CAS No: NA
Mol.F. : C26H26N4O7S
Mol.Wt. : 538.6
Inv. Status: Custom Synthesis
SZ-C116041
CAS No:NA
Mol.F.: C26H26N4O7S
Mol.Wt.: 538.6
Inv. Status: Custom Synthesis

Hydroxyphenyldiketopiperazine lactone

Picture of Hydroxyphenyldiketopiperazine lactone
CAT No: SZ-C116042
CAS No: NA
Mol.F. : C18H19N3O5S
Mol.Wt. : 389.4
Inv. Status: Custom Synthesis
SZ-C116042
CAS No:NA
Mol.F.: C18H19N3O5S
Mol.Wt.: 389.4
Inv. Status: Custom Synthesis