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N-p-Tosyl-L-phenylalanine chloromethyl ketone

CAS 402-71-1C17H18ClNO3SBiochemicals & Reagents

N-p-Tosyl-L-phenylalanine chloromethyl ketone (CAS 402-71-1), molecular formula C17H18ClNO3S, is a high-purity chemical supplied by Tech Serve Solutions for biochemicals & reagents applications, to pharmacopoeia specification (USP, BP, EP). Every batch is tested and ships with a Certificate of Analysis; MSDS and technical data sheets are available on request. Tech Serve Solutions has supplied laboratory reagents, fine chemicals and pharmaceutical intermediates worldwide since 1998.

IUPAC
(S)-1-Chloro-3-tosylamido-4-phenyl-2-butanone,(S)-1-Chloro-4-phenyl-3-tosylamido-2-butanone,TPCK,Tosyl-L-phenylalanyl-chloromethane
N-p-Tosyl-L-phenylalanine chloromethyl ketone
A to CBioactive Small MoleculesBiochemicals and ReagentsBromelainCell BiologyChymotrypsinalpha-Enzyme InhibitorsEnzyme Inhibitors by EnzymeEnzymes
01 /Properties
Molecular weight351.85
Empirical formulaC17H18ClNO3S
Assay≥97% (TLC)
Formpowder
Colourwhite
SolubilityDMSO: >10 mg/mL (stable for several months at 4°C.)ethanol: soluble20 mg/mL (stable for several months at 4°C. Stock solutions (10 mM in methanol or ethanol) are stable for several months at 4°C.)
Storage temperature−20°C
Melting point106-108 °C(lit.)
ApplicationIrreversible inhibitor of certain serine proteases; used to inhibit chymotrypsin in preparations of trypsin.
02 /Safety & handling
Corrosive
Corrosive
Harmful / irritant
Harmful / irritant
Danger

Hazard statements

  • H315Causes skin irritation
  • H318Causes serious eye damage
  • H335May cause respiratory irritation

Precautionary statements

  • P261Avoid breathing dust, fume, gas or vapours
  • P280Wear protective gloves, clothing and eye/face protection
  • P305IF IN EYES
Protective equipmentdust mask type N95 (US), Eyeshields, Gloves
Transport (UN / ADR)UN 3335
Water hazard class (WGK, DE)3
Hazard codes (EU)Xi
Risk statements (R)37/38-41
Safety statements (S)26-36

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

03 /Identifiers & registry
CAS number
402-71-1
MDL number
MFCD00000935
PubChem substance
24278737
Beilstein registry
2895215
04 /Additional specifications
Gene Informationhuman ... NFKB1(4790), NKAP(79576), NKRF(55922), NOS2(4843), PTGS2(5743)
Potency10-100 μM effective concentration
05 /Quality & supply

Documentation

Supplied to USP, BP and EP standards. Every batch ships with a Certificate of Analysis (assay, identity, purity); MSDS and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is N-p-Tosyl-L-phenylalanine chloromethyl ketone?

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N-p-Tosyl-L-phenylalanine chloromethyl ketone (CAS 402-71-1), molecular formula C17H18ClNO3S, is a high-purity chemical supplied by Tech Serve Solutions for biochemicals & reagents applications, to USP, BP and EP standards.

What grades of N-p-Tosyl-L-phenylalanine chloromethyl ketone does Tech Serve Solutions supply?

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Tech Serve Solutions supplies N-p-Tosyl-L-phenylalanine chloromethyl ketone in USP, BP, EP and reagent/AR grades. Custom specifications for nutraceutical or specialty pharmaceutical applications are available — contact our technical sales team.

What is the CAS number and molecular formula of N-p-Tosyl-L-phenylalanine chloromethyl ketone?

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N-p-Tosyl-L-phenylalanine chloromethyl ketone has CAS number 402-71-1 and molecular formula C17H18ClNO3S. Full specifications appear in the table above and in the Certificate of Analysis.

What is the typical minimum order quantity and lead time for N-p-Tosyl-L-phenylalanine chloromethyl ketone?

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Sample quantities are available for technical evaluation; bulk MOQ depends on grade and packaging. In-stock material typically ships in 7–10 working days; custom-spec orders take 3–4 weeks. Tech Serve Solutions ships worldwide with full export documentation.

Do you provide a Certificate of Analysis (CoA) with each shipment?

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Yes. Every batch of N-p-Tosyl-L-phenylalanine chloromethyl ketone ships with a Certificate of Analysis covering assay, identity and purity tests, plus pharmacopoeia conformance where applicable. MSDS and TDS documents are available on request before order placement.

How should N-p-Tosyl-L-phenylalanine chloromethyl ketone be stored?

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Store N-p-Tosyl-L-phenylalanine chloromethyl ketone in its original sealed container in a cool, dry place away from direct sunlight and incompatible materials, in line with the storage guidance on the Safety Data Sheet. Reseal between dispensings.

What is N-p-Tosyl-L-phenylalanine chloromethyl ketone used for?

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N-p-Tosyl-L-phenylalanine chloromethyl ketone is used in biochemicals & reagents applications across pharmaceutical, research and industrial settings. Our technical team can advise on suitability for your specific process.

How do I request a quote for N-p-Tosyl-L-phenylalanine chloromethyl ketone?

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Request a quote with your required grade, quantity and destination via https://www.techservesolutions.in/contact or email info@techservesolutions.in. We respond with specifications, a Certificate of Analysis and pricing.

Need N-p-Tosyl-L-phenylalanine chloromethyl ketone in a specific grade or volume?

Request a quote