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Papain, 2400 units/mg

Ethylene glycol, 99.5%, SuperDry, J&KSeal

Sodium hydroxide, 97%, ACS reagent

Guanidine hydrochloride, 99%

Titanium(IV) oxide, 99%

1-Methyl-2-pyrrolidinone, 99.99%, for headspace gas chromatography

1-Methyl-2-pyrrolidinone, 99.5%, SuperDry, J&KSeal

1H,1H,2H,2H-Perfluorooctan-1-ol, 97%

Ethyl acrylate, 99%, stabilized with 20 ppm MEHQ

Dextran, average M.W. 250,000

Tetraethyl orthosilicate, 99%

1-Pentanesulfonic acid sodium salt, 99.5%, for ion-pair chromatography

Cystamine dihydrochloride, 98%

Sodium dihydrogen phosphate monohydrate, 98%, for analysis

Palladium on activated carbon, 10% Pd, unreduced, dry

Petroleum ether, boiling range 30 - 60 ℃, for GC residue analysis

Poly(isobutylene), average M.W. 600,000

N,N-Dimethylacetamide, 99.5%

Acetic acid, eluent additive for LC-MS

Poly(styrene), average M.W. 260,000

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