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MSTP – 50mg


MSTP – 50mg


995 in stock (can be backordered)



MSTP (4-(5-(methylsulfonyl)-1H-tetrazol-1-yl)phenol) is a new cell membrane permeable thiol blocking reagent. Its main advantage over the most used thiol alkylators such as iodoacetamide (IAM) or N-ethylmaleimide (NEM), is the lack of reactivity with sulfenylated thiols (-SOH), an important requirement for redox analytical platforms. More information.

Additional information

Weight 1.28125 lbs
Dimensions 12.375 × 10.875 × 1.5 in
net weight

10 mg, 100 mg, 200 mg

MSTP Safety Data Sheet

Certificate of Analysis

Catalogue ID:                                 MSTP001-10

Product Name:                              MSTP

CAS:                                                 2125668-23-5

IUPAC Name:                                 4-(5-(methylsulfonyl)-1H-tetrazol-1-yl)phenol



Molecular Formula:                      C8H8N4O3S

Molecular Weight                         240.24

Appearance:                                  white solid

Analytical Test for Purity:           NMR

Purity:                                             >95%


1H NMR:                                         Confirms chemical structure

Mass Spec:                                     Confirms chemical structure

Melting Point:                              

Storage Conditions:                      -20 C

Solubility Data:                              Solvent               Solubility (mM)               Solubility (mg/ml)




Analytical data provided upon request


For research purposes only

Download this CoA