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Tamsulosin Related Products


SynZeal is a leading innovator in pharmaceutical reference standards. We supply high-quality Reference Standards of Tamsulosin, pharmacopeial and non-pharmacopeial Tamsulosin impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Tamsulosin impurities reference standards are useful in pharmaceutical research. They are useful in product development, ANDA and DMF filing, quality control (QC), method validation, and stability studies. It is also useful in the identification of unknown impurities and the assessment of genotoxic potential.

Tamsulosin-related products are thoroughly characterized. Tamsulosin products are supplied with detailed COA & analytical data meeting regulatory compliance. We can also provide EP/USP traceable standards based on your requirements. The supplied products are re-tested at regular intervals.

Pharmaceutical Reference Standards

N-Benzyl-Tamsulosin

Picture of N-Benzyl-Tamsulosin
SZ CAT No:: SZ-T008030
CAS No: 1027854-97-2
Mol.F.: C27H34N2O5S
Mol.Wt.: 498.6
Inv. Status: In Stock

Rac-Tamsulosin EP Impurity B

Picture of Rac-Tamsulosin EP Impurity B
SZ CAT No:: SZ-T008050
CAS No: 112244-38-9
Mol.F.: C10H16N2O3S
Mol.Wt.: 244.3
Inv. Status: In Stock

Rac-Tamsulosin EP Impurity H (HCl salt)

Picture of Rac-Tamsulosin EP Impurity H (HCl salt)
SZ CAT No:: SZ-T008049
CAS No: 2724727-12-0
Mol.F.: C20H27NO3 : HCl
Mol.Wt.: 329.4 : 36.5
Inv. Status: In Stock

S(+)-Tamsulosin Sulfonamide

Picture of S(+)-Tamsulosin Sulfonamide
SZ CAT No:: SZ-T008039
CAS No: 119714-13-5
Mol.F.: C10H16N2O3S
Mol.Wt.: 244.3
Inv. Status: In Stock

Tamsulosin Diether

Picture of Tamsulosin Diether
SZ CAT No:: SZ-T008020
CAS No: NA
Mol.F.: C30H40N2O7S
Mol.Wt.: 572.7
Inv. Status: In Stock

Tamsulosin Dimer Impurity 1

Picture of Tamsulosin Dimer Impurity 1
SZ CAT No:: SZ-T008012
CAS No: NA
Mol.F.: C40H54N4O10S2
Mol.Wt.: 815.0
Inv. Status: In Stock

Tamsulosin EP Impurity A

Picture of Tamsulosin EP Impurity A
SZ CAT No:: SZ-T008001
CAS No: 918867-88-6
Mol.F.: C30H40N2O7S
Mol.Wt.: 572.7
Inv. Status: In Stock

Tamsulosin EP Impurity B

Picture of Tamsulosin EP Impurity B
SZ CAT No:: SZ-T008002
CAS No: 112101-81-2 
Mol.F.: C10H16N2O3S
Mol.Wt.: 244.3
Inv. Status: In Stock

Tamsulosin EP Impurity C

Picture of Tamsulosin EP Impurity C
SZ CAT No:: SZ-T008060
CAS No: 2244986-82-9
Mol.F.: C18H24N2O4S
Mol.Wt.: 364.5
Inv. Status: In Stock

Tamsulosin EP Impurity C (HCl salt)

Picture of Tamsulosin EP Impurity C (HCl salt)
SZ CAT No:: SZ-T008003
CAS No: 2724727-15-3
Mol.F.: C18H24N2O4S : HCl
Mol.Wt.: 364.5 : 36.5
Inv. Status: In Stock

Tamsulosin EP Impurity D

Picture of Tamsulosin EP Impurity D
SZ CAT No:: SZ-T008004
CAS No: 1798904-07-0
Mol.F.: C19H26N2O5S : HCl
Mol.Wt.:  394.5 : 36.5
Inv. Status: In Stock

Tamsulosin EP Impurity E

Picture of Tamsulosin EP Impurity E
SZ CAT No:: SZ-T008005
CAS No: 105764-07-6
Mol.F.: C8H9NO4S
Mol.Wt.: 215.2
Inv. Status: In Stock

Tamsulosin EP Impurity F

Picture of Tamsulosin EP Impurity F
SZ CAT No:: SZ-T008006
CAS No: 1051368-80-9 
Mol.F.: C10H15NO2 : HCl
Mol.Wt.: 181.2 : 36.5
Inv. Status: In Stock

Tamsulosin EP Impurity G (HCl salt)

Picture of Tamsulosin EP Impurity G (HCl salt)
SZ CAT No:: SZ-T008007
CAS No: 106463-19-8
Mol.F.: C20H28N2O5S : HCl
Mol.Wt.: 408.5 : 36.5
Inv. Status: In Stock

Tamsulosin EP Impurity H

Picture of Tamsulosin EP Impurity H
SZ CAT No:: SZ-T008008
CAS No: 1329611-47-3
Mol.F.: C20H27NO3
Mol.Wt.: 329.4
Inv. Status: In Stock

Tamsulosin EP Impurity I

Picture of Tamsulosin EP Impurity I
SZ CAT No:: SZ-T008009
CAS No: 3259-03-8
Mol.F.: C10H13BrO2
Mol.Wt.: 245.1
Inv. Status: In Stock

Tamsulosin Hydrochloride

Picture of Tamsulosin Hydrochloride
SZ CAT No:: SZ-T008010
CAS No: 106463-17-6
Mol.F.: C20H28N2O5S : HCl
Mol.Wt.: 408.5 : 36.5
Inv. Status: In Stock

Tamsulosin Hydrochloride Racemate

Picture of Tamsulosin Hydrochloride Racemate
SZ CAT No:: SZ-T008011
CAS No: 80223-99-0
Mol.F.: C20H28N2O5S : HCl
Mol.Wt.: 408.5 : 36.5
Inv. Status: In Stock

Tamsulosin Impurity 1

Picture of Tamsulosin Impurity 1
SZ CAT No:: SZ-T008026
CAS No: 944395-49-7
Mol.F.: C10H14N2O4S
Mol.Wt.: 258.3
Inv. Status: In Stock

Tamsulosin Impurity 18

Picture of Tamsulosin Impurity 18
SZ CAT No:: SZ-T008048
CAS No: NA
Mol.F.: C22H32N2O5S
Mol.Wt.: 436.6
Inv. Status: In Stock

Tamsulosin Impurity 19

Picture of Tamsulosin Impurity 19
SZ CAT No:: SZ-T008051
CAS No: NA
Mol.F.: C10H13NO3S
Mol.Wt.: 227.3
Inv. Status: In Stock

Tamsulosin Impurity 21

Picture of Tamsulosin Impurity 21
SZ CAT No:: SZ-T008053
CAS No: 80223-79-6
Mol.F.: C10H11ClO4S
Mol.Wt.: 262.7
Inv. Status: In Stock

Tamsulosin Impurity 33

Picture of Tamsulosin Impurity 33
SZ CAT No:: SZ-T008062
CAS No: 1510821-22-3
Mol.F.: C10H13NO3S
Mol.Wt.: 227.3
Inv. Status: In Stock

Tamsulosin Impurity 5

Picture of Tamsulosin Impurity 5
SZ CAT No:: SZ-T008034
CAS No: NA
Mol.F.: C22H32N2O5S
Mol.Wt.: 436.6
Inv. Status: In Stock

Tamsulosin Impurity 7

Picture of Tamsulosin Impurity 7
SZ CAT No:: SZ-T008036
CAS No: 92119-04-5
Mol.F.: C12H14O4
Mol.Wt.: 222.2
Inv. Status: In Stock

Tamsulosin Impurity 9 (HCl salt)

Picture of Tamsulosin Impurity 9 (HCl salt)
SZ CAT No:: SZ-T008038
CAS No: 2087-35-6
Mol.F.: C10H15NO2 : HCl
Mol.Wt.: 181.2 : 36.5
Inv. Status: In Stock

Tamsulosin N-Ethyl

Picture of Tamsulosin N-Ethyl
SZ CAT No:: SZ-T008017
CAS No: NA
Mol.F.: C12H20N2O3S
Mol.Wt.: 272.4
Inv. Status: In Stock

Tamsulosin Sulfonic Acid

Picture of Tamsulosin Sulfonic Acid
SZ CAT No:: SZ-T008021
CAS No: 890708-67-5
Mol.F.: C20H27NO6S
Mol.Wt.: 409.5
Inv. Status: In Stock

Tamsulosin Sulphonamide

Picture of Tamsulosin Sulphonamide
SZ CAT No:: SZ-T008013
CAS No: 855298-56-5
Mol.F.: C12H17ClN2O4S
Mol.Wt.: 320.8
Inv. Status: In Stock

Tamsulosin Impurity 11

Picture of Tamsulosin Impurity 11
SZ CAT No:: SZ-T008022
CAS No: 3251-30-7
Mol.F.: C10H12O4
Mol.Wt.: 196.2
Inv. Status: Limited Stock

N-methyl Tamsulosin Impurity 

Picture of N-methyl Tamsulosin Impurity 
SZ CAT No:: SZ-T008033
CAS No: NA
Mol.F.: C21H30N2O5S
Mol.Wt.: 422.5
Inv. Status: Custom Synthesis

Tamsulosin

Picture of Tamsulosin
SZ CAT No:: SZ-T008029
CAS No: 106133-20-4
Mol.F.: C20H28N2O5S
Mol.Wt.: 408.5
Inv. Status: Custom Synthesis

Tamsulosin Catechol

Picture of Tamsulosin Catechol
SZ CAT No:: SZ-T008037
CAS No: 176223-30-6
Mol.F.: C18H24N2O5S
Mol.Wt.: 380.5
Inv. Status: Custom Synthesis

Tamsulosin Dimer Impurity 2

Picture of Tamsulosin Dimer Impurity 2
SZ CAT No:: SZ-T008016
CAS No: NA
Mol.F.: C32H46N4O8S2
Mol.Wt.: 678.9
Inv. Status: Custom Synthesis

Tamsulosin Impurity 10

Picture of Tamsulosin Impurity 10
SZ CAT No:: SZ-T008040
CAS No: 3250-73-5
Mol.F.: C10H14O3
Mol.Wt.: 182.2
Inv. Status: Custom Synthesis

Tamsulosin Impurity 12

Picture of Tamsulosin Impurity 12
SZ CAT No:: SZ-T008023
CAS No: NA
Mol.F.: C28H34N2O6S
Mol.Wt.: 526.6
Inv. Status: Custom Synthesis

Tamsulosin Impurity 13

Picture of Tamsulosin Impurity 13
SZ CAT No:: SZ-T008024
CAS No: 35193-64-7
Mol.F.: C20H13O4P
Mol.Wt.: 348.3
Inv. Status: Custom Synthesis

Tamsulosin Impurity 14

Picture of Tamsulosin Impurity 14
SZ CAT No:: SZ-T008025
CAS No: 116091-63-5
Mol.F.: C10H13NO4S
Mol.Wt.: 243.3
Inv. Status: Custom Synthesis

Tamsulosin Impurity 15

Picture of Tamsulosin Impurity 15
SZ CAT No:: SZ-T008045
CAS No: NA
Mol.F.: C20H24Br2O4
Mol.Wt.: 488.2
Inv. Status: Custom Synthesis

Tamsulosin Impurity 16

Picture of Tamsulosin Impurity 16
SZ CAT No:: SZ-T008046
CAS No: 589-10-6
Mol.F.: C8H9BrO
Mol.Wt.: 201.1
Inv. Status: Custom Synthesis

Tamsulosin Impurity 17

Picture of Tamsulosin Impurity 17
SZ CAT No:: SZ-T008047
CAS No: 4463-59-6
Mol.F.: C9H11BrO2
Mol.Wt.: 231.1
Inv. Status: Custom Synthesis

Tamsulosin Impurity 2

Picture of Tamsulosin Impurity 2
SZ CAT No:: SZ-T008027
CAS No: 890708-64-2
Mol.F.: C18H23NO4S
Mol.Wt.: 349.4
Inv. Status: Custom Synthesis

Tamsulosin Impurity 20

Picture of Tamsulosin Impurity 20
SZ CAT No:: SZ-T008052
CAS No: NA
Mol.F.: C10H12O5S
Mol.Wt.: 244.3
Inv. Status: Custom Synthesis

Tamsulosin Impurity 22

Picture of Tamsulosin Impurity 22
SZ CAT No:: SZ-T008041
CAS No: 26690-39-1
Mol.F.: C10H13BrO2
Mol.Wt.: 245.1
Inv. Status: Custom Synthesis

Tamsulosin Impurity 23

Picture of Tamsulosin Impurity 23
SZ CAT No:: SZ-T008042
CAS No: 54646-18-3
Mol.F.: C10H13BrO2
Mol.Wt.: 245.1
Inv. Status: Custom Synthesis

Tamsulosin Impurity 24

Picture of Tamsulosin Impurity 24
SZ CAT No:: SZ-T008043
CAS No: 136383-33-0
Mol.F.: C10H12Br2O2
Mol.Wt.: 324.0
Inv. Status: Custom Synthesis

Tamsulosin Impurity 25

Picture of Tamsulosin Impurity 25
SZ CAT No:: SZ-T008044
CAS No: 5471-84-1
Mol.F.: C10H12Br2O2
Mol.Wt.: 324.0
Inv. Status: Custom Synthesis

Tamsulosin Impurity 26

Picture of Tamsulosin Impurity 26
SZ CAT No:: SZ-T008054
CAS No: 58993-79-6
Mol.F.: C10H15NO
Mol.Wt.: 165.2
Inv. Status: Custom Synthesis

Tamsulosin Impurity 27

Picture of Tamsulosin Impurity 27
SZ CAT No:: SZ-T008055
CAS No: 86073-42-9
Mol.F.: C12H17NO2
Mol.Wt.: 207.3
Inv. Status: Custom Synthesis

Tamsulosin Impurity 28

Picture of Tamsulosin Impurity 28
SZ CAT No:: SZ-T008056
CAS No: 112101-74-3
Mol.F.: C12H18N2O4S
Mol.Wt.: 286.3
Inv. Status: Custom Synthesis

Tamsulosin Impurity 29

Picture of Tamsulosin Impurity 29
SZ CAT No:: SZ-T008057
CAS No: 890708-65-3
Mol.F.: C10H15NO4S
Mol.Wt.: 245.3
Inv. Status: Custom Synthesis

Tamsulosin Impurity 3

Picture of Tamsulosin Impurity 3
SZ CAT No:: SZ-T008031
CAS No: 896468-69-2
Mol.F.: C12H15Cl2NO4S
Mol.Wt.: 340.2
Inv. Status: Custom Synthesis

Tamsulosin Impurity 30

Picture of Tamsulosin Impurity 30
SZ CAT No:: SZ-T008058
CAS No: NA
Mol.F.: C11H18N2O3S
Mol.Wt.: 258.3
Inv. Status: Custom Synthesis

Tamsulosin Impurity 32

Picture of Tamsulosin Impurity 32
SZ CAT No:: SZ-T008059
CAS No: NA
Mol.F.: C18H24N2O3S : HCl
Mol.Wt.: 348.5 : 36.5
Inv. Status: Custom Synthesis

Tamsulosin Impurity 4

Picture of Tamsulosin Impurity 4
SZ CAT No:: SZ-T008032
CAS No: 896468-68-1
Mol.F.: C12H16ClNO2
Mol.Wt.: 241.7
Inv. Status: Custom Synthesis

Tamsulosin Impurity 6

Picture of Tamsulosin Impurity 6
SZ CAT No:: SZ-T008035
CAS No: NA
Mol.F.: C20H26O5
Mol.Wt.: 346.4
Inv. Status: Custom Synthesis

Tamsulosin Oxo Dimer

Picture of Tamsulosin Oxo Dimer
SZ CAT No:: SZ-T008018
CAS No: NA
Mol.F.: C32H44N4O9S2
Mol.Wt.: 692.8
Inv. Status: Custom Synthesis

Tamsulosin Sulfonamide Chloroacetyl 

Picture of Tamsulosin Sulfonamide Chloroacetyl 
SZ CAT No:: SZ-T008019
CAS No: NA
Mol.F.: C14H18Cl2N2O5S
Mol.Wt.: 397.3
Inv. Status: Custom Synthesis

Tmasulosin Ether

Picture of Tmasulosin Ether
SZ CAT No:: SZ-T008014
CAS No: 133261-17-3
Mol.F.: C20H26N2O6S
Mol.Wt.: 422.5
Inv. Status: Custom Synthesis

Tmasulosin Ether Dimer

Picture of Tmasulosin Ether Dimer
SZ CAT No:: SZ-T008015
CAS No: NA
Mol.F.: C32H42N4O10S2
Mol.Wt.: 706.8
Inv. Status: Custom Synthesis

Tamsulosin EP Impurity G

Picture of Tamsulosin EP Impurity G
SZ CAT No:: SZ-T008061
CAS No: 106138-88-9
Mol.F.: C20H28N2O5S
Mol.Wt.: 408.5
Inv. Status:

Stable Isotopes And Metabolites

(R)-(-)-Tamsulosin-d5 HCl (ethoxy-d5)

Picture of (R)-(-)-Tamsulosin-d5 HCl (ethoxy-d5)
SZ CAT No:: SZ-T008D02
CAS No: NA
Mol.F.: C20H23D5N2O5S
Mol.Wt.: 413.5
Inv. Status: Custom Synthesis

N-Nitroso Racemic Tamsulosin-D3

Picture of N-Nitroso Racemic Tamsulosin-D3
SZ CAT No:: SZ-T008D03
CAS No: NA
Mol.F.: C20H24D3N3O6S
Mol.Wt.: 440.5
Inv. Status: Custom Synthesis

Tamsulosin D4

Picture of Tamsulosin D4
SZ CAT No:: SZ-T008D01
CAS No: 1231943-97-7
Mol.F.: C20H24D4N2O5S
Mol.Wt.: 412.5
Inv. Status: Custom Synthesis

N-Nitroso Tamsulosin D4

Picture of N-Nitroso Tamsulosin D4
SZ CAT No:: SZ-T008D04
CAS No: NA
Mol.F.: C20H23D4N3O6S
Mol.Wt.: 441.5
Inv. Status:

Possible Nitroso Standards

N-Nitroso Tamsulosin (USP)

Picture of N-Nitroso Tamsulosin (USP)
SZ CAT No:: SZ-T008028
CAS No: 2892260-31-8
Mol.F.: C20H27N3O6S
Mol.Wt.: 437.5
Inv. Status: In Stock
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