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Pharmaceutical Reference Standards

Azithromycin

Picture of Azithromycin
CAT No:SZ-A040000
CAS No:117772-70-0
Mol. Formula: C38H72N2O12 . 2H2O
Mol. Weight: 749 . 2(18.02)
Inv. Status: In Stock
SZ-A040000
CAS No:117772-70-0
Mol. Formula: C38H72N2O12 . 2H2O
Mol. Weight: 749 . 2(18.02)
Inv. Status: In Stock

Azithromycin EP Impurity A 

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CAT No:SZ-A040002
CAS No:76801-85-9
Mol. Formula: C37H70N2O12 
Mol. Weight: 734.96 
Inv. Status: In Stock
SZ-A040002
CAS No:76801-85-9
Mol. Formula: C37H70N2O12 
Mol. Weight: 734.96 
Inv. Status: In Stock

Azithromycin EP Impurity B

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CAT No:SZ-A040003
CAS No:307974-61-4 
Mol. Formula: C38H72N2O11 
Mol. Weight: 732.99 
Inv. Status: Custom Synthesis
SZ-A040003
CAS No:307974-61-4 
Mol. Formula: C38H72N2O11 
Mol. Weight: 732.99 
Inv. Status: Custom Synthesis

Azithromycin EP Impurity C

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CAT No:SZ-A040004
CAS No:620169-47-3
Mol. Formula: C37H70N2O12 
Mol. Weight: 734.96 
Inv. Status: Under Synthesis
SZ-A040004
CAS No:620169-47-3
Mol. Formula: C37H70N2O12 
Mol. Weight: 734.96 
Inv. Status: Under Synthesis

Azithromycin EP Impurity D

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CAT No:SZ-A040005
CAS No:612069-26-8
Mol. Formula: C38H72N2O13 
Mol. Weight: 764.98 
Inv. Status: Custom Synthesis
SZ-A040005
CAS No:612069-26-8
Mol. Formula: C38H72N2O13 
Mol. Weight: 764.98 
Inv. Status: Custom Synthesis

Azithromycin EP Impurity E

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CAT No:SZ-A040006
CAS No:612069-27-9
Mol. Formula: C36H68N2O12 
Mol. Weight: 720.93 
Inv. Status: In Stock
SZ-A040006
CAS No:612069-27-9
Mol. Formula: C36H68N2O12 
Mol. Weight: 720.93 
Inv. Status: In Stock

Azithromycin EP Impurity F

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CAT No:SZ-A040007
CAS No: 612069-28-0
Mol. Formula: C38H70N2O13
Mol. Weight: 762.97 
Inv. Status: In Stock
SZ-A040007
CAS No: 612069-28-0
Mol. Formula: C38H70N2O13
Mol. Weight: 762.97 
Inv. Status: In Stock

Azithromycin EP Impurity G

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CAT No:SZ-A040008
CAS No:612069-31-5
Mol. Formula: C44H76N2O14S 
Mol. Weight: 889.14 
Inv. Status: In Stock
SZ-A040008
CAS No:612069-31-5
Mol. Formula: C44H76N2O14S 
Mol. Weight: 889.14 
Inv. Status: In Stock

Azithromycin EP Impurity H

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CAT No:SZ-A040009
CAS No:612069-30-4
Mol. Formula: C45H77N3O15S 
Mol. Weight: 932.17 
Inv. Status: In Stock
SZ-A040009
CAS No:612069-30-4
Mol. Formula: C45H77N3O15S 
Mol. Weight: 932.17 
Inv. Status: In Stock

Azithromycin EP Impurity I

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CAT No:SZ-A040010
CAS No:172617-84-4 
Mol. Formula: C37H70N2O12 
Mol. Weight: 734.96 
Inv. Status: In Stock
SZ-A040010
CAS No:172617-84-4 
Mol. Formula: C37H70N2O12 
Mol. Weight: 734.96 
Inv. Status: In Stock

Azithromycin EP Impurity J

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CAT No:SZ-A040011
CAS No:117693-41-1
Mol. Formula: C30H58N2O9 
Mol. Weight: 590.79 
Inv. Status: In Stock
SZ-A040011
CAS No:117693-41-1
Mol. Formula: C30H58N2O9 
Mol. Weight: 590.79 
Inv. Status: In Stock

Azithromycin EP Impurity K

Picture of Azithromycin EP Impurity K
CAT No:SZ-A040012
CAS No:612534-95-9
Mol. Formula: C38H70N2O13 
Mol. Weight: 762.97 
Inv. Status: Custom Synthesis
SZ-A040012
CAS No:612534-95-9
Mol. Formula: C38H70N2O13 
Mol. Weight: 762.97 
Inv. Status: Custom Synthesis

Azithromycin EP Impurity L

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CAT No:SZ-A040013
CAS No: 90503-06-3 
Mol. Formula: C38H72N2O13 
Mol. Weight: 764.98 
Inv. Status: In Stock
SZ-A040013
CAS No: 90503-06-3 
Mol. Formula: C38H72N2O13 
Mol. Weight: 764.98 
Inv. Status: In Stock

Azithromycin EP Impurity M

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CAT No:SZ-A040014
CAS No:765927-71-7
Mol. Formula: C37H68N2O13
Mol. Weight: 748.94
Inv. Status: In Stock
SZ-A040014
CAS No:765927-71-7
Mol. Formula: C37H68N2O13
Mol. Weight: 748.94
Inv. Status: In Stock

Azithromycin EP Impurity N

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CAT No:SZ-A040015
CAS No:612069-25-7 
Mol. Formula: C36H65NO13 
Mol. Weight: 719.9 
Inv. Status: In Stock
SZ-A040015
CAS No:612069-25-7 
Mol. Formula: C36H65NO13 
Mol. Weight: 719.9 
Inv. Status: In Stock

Azithromycin EP Impurity O

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CAT No:SZ-A040016
CAS No:763924-54-5 
Mol. Formula: C39H74N2O12 
Mol. Weight: 763.01 
Inv. Status: Custom Synthesis
SZ-A040016
CAS No:763924-54-5 
Mol. Formula: C39H74N2O12 
Mol. Weight: 763.01 
Inv. Status: Custom Synthesis

Azithromycin Impurity Q

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CAT No:SZ-A040017
CAS No:N/A
Mol. Formula: C37H66N2O12 
Mol. Weight: 730.94
Inv. Status: Custom Synthesis
SZ-A040017
CAS No:N/A
Mol. Formula: C37H66N2O12 
Mol. Weight: 730.94
Inv. Status: Custom Synthesis

Azithromycin Impurity R

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CAT No:SZ-A040018
CAS No:161193-44-8
Mol. Formula: C37H66N2O12 
Mol. Weight: 730.94
Inv. Status: Custom Synthesis
SZ-A040018
CAS No:161193-44-8
Mol. Formula: C37H66N2O12 
Mol. Weight: 730.94
Inv. Status: Custom Synthesis

3-Hydroxy Azithromycinoic Acid Sodium Salt 

Picture of 3-Hydroxy Azithromycinoic Acid Sodium Salt 
CAT No:SZ-A040019
CAS No:N/A
Mol. Formula: C30H59N2O10. Na
Mol. Weight: 607.81 22.99
Inv. Status: Custom Synthesis
SZ-A040019
CAS No:N/A
Mol. Formula: C30H59N2O10. Na
Mol. Weight: 607.81 22.99
Inv. Status: Custom Synthesis

Azithromycin Impurity 1

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CAT No:SZ-A040020
CAS No:2095879-65-3
Mol. Formula: C44H75N3O15S 
Mol. Weight: 918.15
Inv. Status: Limited Stock
SZ-A040020
CAS No:2095879-65-3
Mol. Formula: C44H75N3O15S 
Mol. Weight: 918.15
Inv. Status: Limited Stock

Azithromycin Impurity 2

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CAT No:SZ-A040021
CAS No:N/A
Mol. Formula: C38H70N2O14
Mol. Weight: 778.98
Inv. Status: Custom Synthesis
SZ-A040021
CAS No:N/A
Mol. Formula: C38H70N2O14
Mol. Weight: 778.98
Inv. Status: Custom Synthesis

Azithromycin Impurity 3 Sodium Salt

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CAT No:SZ-A040022
CAS No:N/A
Mol. Formula: C38H73N2O13. Na
Mol. Weight: 766.01 22.99
Inv. Status: Custom Synthesis
SZ-A040022
CAS No:N/A
Mol. Formula: C38H73N2O13. Na
Mol. Weight: 766.01 22.99
Inv. Status: Custom Synthesis

Azaerythromycin A 11,12-hydrogen borate

Picture of Azaerythromycin A 11,12-hydrogen borate
CAT No:SZ-A040023
CAS No:194809-66-0
Mol. Formula: C37H69BN2O13
Mol. Weight: 760.77
Inv. Status: Custom Synthesis
SZ-A040023
CAS No:194809-66-0
Mol. Formula: C37H69BN2O13
Mol. Weight: 760.77
Inv. Status: Custom Synthesis

Azithromycin Impurity P

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CAT No:SZ-A040025
CAS No:92594-45-1
Mol. Formula: C39H74N2O12
Mol. Weight: 763.02
Inv. Status: In Stock
SZ-A040025
CAS No:92594-45-1
Mol. Formula: C39H74N2O12
Mol. Weight: 763.02
Inv. Status: In Stock