1.1.1.145 additional information - additional information - 389373, 389374 1.1.1.145 additional information - additional information kinetic analysis 656652 1.1.1.145 additional information - additional information kinetics recombinant wild-type isozyme and mutant H165Y, kinetics for the DELTA-5-3-ketosteroid isomerase, EC 5.3.3.1, activity 656091 1.1.1.145 additional information - additional information kinetics recombinant wild-type isozymes and mutant H165Y, kinetics for the DELTA-5-3-ketosteroid isomerase, EC 5.3.3.1, activity 656091 1.1.1.145 additional information - additional information kinetics, recombinant wild-type and mutant isozymes, overview, kinetics for the DELTA-5-3-ketosteroid isomerase, EC 5.3.3.1, activity 662371 1.1.1.145 0.0000047 - NAD+ 37°C, pH 7.25 657352 1.1.1.145 0.00004 - pregnenolone 3betaHSD VI 389384 1.1.1.145 0.00007 - pregnenolone - 389372 1.1.1.145 0.00008 - pregnenolone 3betaHSD I 389383 1.1.1.145 0.00009 - dehydroepiandrosterone - 389396 1.1.1.145 0.00012 - dehydroepiandrosterone 3betaHSD VI 389384 1.1.1.145 0.00013 - pregnenolone - 389396 1.1.1.145 0.00014 - dehydroepiandrosterone 3betaHSD I 389383 1.1.1.145 0.00016 - androstanediol 3betaHSD I 389383 1.1.1.145 0.00017 - dehydroepiandrosterone - 389382 1.1.1.145 0.0003 - NADP+ pH 7.4, 25°C 684725 1.1.1.145 0.0003 - NADPH pH 7.4, 25°C 684725 1.1.1.145 0.00042 - dehydroepiandrosterone pH 7.5, 37°C 656655 1.1.1.145 0.00046 - androstanediol 3betaHSD III 389383 1.1.1.145 0.00047 - pregnenolone 37°C, pH 7.25 657352 1.1.1.145 0.00049 - dehydroepiandrosterone 3betaHSD III 389383 1.1.1.145 0.00059 - dehydroepiandrosterone 37°C, pH 8.4 656655 1.1.1.145 0.0007 - dehydroepiandrosterone wild-type, presence of 2-mercatoethanol pH 7.4 688685 1.1.1.145 0.001 - allopregnanolone - 389390 1.1.1.145 0.001 - androstenediol - 389390 1.1.1.145 0.001 - dehydroepiandrosterone - 389390 1.1.1.145 0.001 - pregnenolone 37°C 656586, 656652 1.1.1.145 0.00102 - pregnenolone - 389382 1.1.1.145 0.00103 - pregnenolone 3betaHSD III 389383 1.1.1.145 0.0011 - pregnenolone 37°C 656652 1.1.1.145 0.0014 - 16beta-hydroxy-dehydroepiandrosterone wild-type 3beta-HSD1, pH 7.4, 27°C 725813 1.1.1.145 0.0015 - 16beta-hydroxy-dehydroepiandrosterone mutant R195R, pH 7.4, 27°C 725813 1.1.1.145 0.0015 - 4,4'-dimethylbenzil pH 7.4, 25°C 684725 1.1.1.145 0.0016 - dehydroepiandrosterone microsomes 389391 1.1.1.145 0.00164 - dehydroepiandrosterone mutant Q105M, pH 7.4, 27°C 725820 1.1.1.145 0.0017 - dehydroepiandrosterone - 389385 1.1.1.145 0.0018 - dehydroepiandrosterone 37°C, pH 7.4 656657 1.1.1.145 0.002 - pregnenolone - 389369, 389390 1.1.1.145 0.002 - pregnenolone mitochondria 389391 1.1.1.145 0.0024 - dehydroepiandrosterone type I 389400 1.1.1.145 0.0025 - NADH mutant E192A, pH 7.4, 27°C 725813 1.1.1.145 0.0028 - dehydroepiandrosterone mutant C72S, pH 7.4 688685 1.1.1.145 0.0028 - pregnenolone 27°C, pH 7.4 656091 1.1.1.145 0.0029 - 5beta-pregnane-3,20-dione pH 7.4, 25°C 684725 1.1.1.145 0.0029 - dehydroepiandrosterone type II 389400 1.1.1.145 0.003 - 7alpha,27-dihydroxycholesterol - 389392 1.1.1.145 0.0032 - 7alpha-hydroxycholesterol - 389392 1.1.1.145 0.0032 - pregnenolone microsomes 389391 1.1.1.145 0.0034 - NAD+ wild type enzyme 389386 1.1.1.145 0.0035 - 17alpha-hydroxypregnenolone 27°C, pH 7.4 656091 1.1.1.145 0.0035 - NAD+ modified enzyme 389386 1.1.1.145 0.0036 - 9,10-phenanthrenequinone pH 7.4, 25°C 684725 1.1.1.145 0.0036 - NADH mutant R195P, pH 7.4, 27°C 725813 1.1.1.145 0.0037 - dehydroepiandrosterone 27°C, pH 7.4 656091, 656577, 656788 1.1.1.145 0.0037 - dehydroepiandrosterone in 0.02 M potassium phosphate buffer, pH 7.4 700182 1.1.1.145 0.0037 - dehydroepiandrosterone pH 7.4 655345 1.1.1.145 0.0037 - dehydroepiandrosterone pH 7.4, 27°C, recombinant wild-type isozyme 3beta-HSD1 656091, 662371 1.1.1.145 0.0037 - dehydroepiandrosterone pH 7.4, 27°C, wild-type enzyme 763397 1.1.1.145 0.0037 - dehydroepiandrosterone wild type enzyme 389386 1.1.1.145 0.0037 - dehydroepiandrosterone wild-type 3beta-HSD1, pH 7.4, 27°C 725813 1.1.1.145 0.0037 - dehydroepiandrosterone wild-type, pH 7.4 688685 1.1.1.145 0.0037 - dehydroepiandrosterone wild-type, pH 7.4, 27°C 725820 1.1.1.145 0.0038 - 11beta,17alpha,21-trihydroxy-4-pregnene-3,20-dione - 389394 1.1.1.145 0.004 - 16alpha-hydroxy-dehydroepiandrosterone mutant R195R, pH 7.4, 27°C 725813 1.1.1.145 0.0041 - 5beta-androstane-3beta,17beta-diol pH 7.4, 25°C 684725 1.1.1.145 0.0044 - dehydroepiandrosterone mutant C72S, presence of 2-mercatoethanol pH 7.4 688685 1.1.1.145 0.0045 - dehydroepiandrosterone mitochondria 389391 1.1.1.145 0.0045 - dehydroepiandrosterone modified enzyme 389386 1.1.1.145 0.0046 - NADH wild-type 3beta-HSD1, pH 7.4, 27°C 725813 1.1.1.145 0.0049 - 5beta-androstan-17beta-ol-3-one pH 7.4, 25°C 684725 1.1.1.145 0.005 - benzil pH 7.4, 25°C 684725 1.1.1.145 0.005 - dehydroepiandrosterone - 389380 1.1.1.145 0.0052 - 1-phenylisatin pH 7.4, 25°C 684725 1.1.1.145 0.0053 - 3beta,17alpha-dihydroxy-5-pregen-20-one - 389369 1.1.1.145 0.0055 - NADH mutant R195R, pH 7.4, 27°C 725813 1.1.1.145 0.0055 - pregnenolone type I 389400 1.1.1.145 0.0055 - stanolone 3betaHSD I 389383 1.1.1.145 0.0061 - dehydroepiandrosterone pH 7.4, 27°C, recombinant isozyme 3beta-HSD1 mutant Q240R 662371 1.1.1.145 0.0062 0.0066 NAD+ - 389369 1.1.1.145 0.0064 - 16alpha-hydroxy-dehydroepiandrosterone wild-type 3beta-HSD1, pH 7.4, 27°C 725813 1.1.1.145 0.0065 - NADH mutant E192A, pH 7.4, 27°C 725813 1.1.1.145 0.0068 - stanolone 3betaHSD III 389383 1.1.1.145 0.0072 - NADH mutant D61N, pH 7.4, 27°C 725813 1.1.1.145 0.0075 - dehydroepiandrosterone mutant C83A, presence of 2-mercatoethanol pH 7.4 688685 1.1.1.145 0.0077 - dehydroepiandrosterone mutant P195R, pH 7.4, 27°C 725820 1.1.1.145 0.0077 - dehydroepiandrosterone mutant R195R, pH 7.4, 27°C 725813 1.1.1.145 0.0079 - 5beta-androstan-3beta-ol-17-one pH 7.4, 25°C 684725 1.1.1.145 0.008 - 5beta-Pregnan-3beta-ol-20-one pH 7.4, 25°C 684725 1.1.1.145 0.008 - 5beta-pregnane-3beta,20alpha-diol pH 7.4, 25°C 684725 1.1.1.145 0.0082 - dehydroepiandrosterone mutant E192A, pH 7.4, 27°C 725813 1.1.1.145 0.0084 - (S)-phenyl-1-butanol pH 7.4, 25°C 684725 1.1.1.145 0.0088 - pregnenolone type II 389400 1.1.1.145 0.0097 - 5beta-pregnan-20alpha-ol-3-one pH 7.4, 25°C 684725 1.1.1.145 0.01 - 5beta-androstane-3,17-dione pH 7.4, 25°C 684725 1.1.1.145 0.01 - dehydroepiandrosterone - 389380 1.1.1.145 0.0107 - dehydroepiandrosterone mutant R195P, pH 7.4, 27°C 725813, 725820 1.1.1.145 0.0107 - dehydroepiandrosterone pH 7.4, 27°C, chimeric R195P-1 mutant of the enzyme (3beta-HSD1) 763397 1.1.1.145 0.011 - dehydroepiandrosterone 27°C, pH 7.4, S123A mutant 3betaHSD1 656577 1.1.1.145 0.0115 - dehydroepiandrosterone mutant C72F, presence of 2-mercatoethanol pH 7.4 688685 1.1.1.145 0.012 - NAD+ wild-type, presence of 2-mercatoethanol pH 7.4 688685 1.1.1.145 0.0124 - dehydroepiandrosterone pH 7.4, 27°C, chimeric S194G-1 mutant of the enzyme (3beta-HSD1) 763397 1.1.1.145 0.0126 - NADH wild-type 3beta-HSD2, pH 7.4, 27°C 725813 1.1.1.145 0.0127 - dehydroepiandrosterone mutant C72F, pH 7.4 688685 1.1.1.145 0.0144 - 5-androstene-3,17-dione placental microsomes 389401 1.1.1.145 0.0147 - 5-androstene-3,17-dione Sf9 cell homogenate 389401 1.1.1.145 0.0148 - 16alpha-hydroxy-dehydroepiandrosterone wild-type 3beta-HSD2, pH 7.4, 27°C 725813 1.1.1.145 0.015 - 16beta-hydroxy-dehydroepiandrosterone mutant R195P, pH 7.4, 27°C 725813 1.1.1.145 0.0152 - prostaglandin E2 - 389394 1.1.1.145 0.0153 - NAD+ mutant C72S, pH 7.4 688685 1.1.1.145 0.0156 - dehydroepiandrosterone pH 7.4, 27°C, wild-type enzyme 763397 1.1.1.145 0.0156 - dehydroepiandrosterone wild-type 3beta-HSD2, pH 7.4, 27°C 725813 1.1.1.145 0.0156 - dehydroepiandrosterone wild-type, pH 7.4, 27°C 725820 1.1.1.145 0.016 - 5alpha-dihydrotestosterone pH 7.4, 25°C 684725 1.1.1.145 0.0166 - NAD+ mutant C111S, presence of 2-mercatoethanol pH 7.4 688685 1.1.1.145 0.0167 - 5alpha-Androstan-3beta-ol-17-one placental microsomes 389401 1.1.1.145 0.0168 - dehydroepiandrosterone mutant C111S, presence of 2-mercatoethanol pH 7.4 688685 1.1.1.145 0.0171 - dehydroepiandrosterone mutant C83A, pH 7.4 688685 1.1.1.145 0.0179 - 5alpha-Androstan-3beta-ol-17-one Sf9 cell homogenate 389401 1.1.1.145 0.018 - 17alpha-hydroxypregnenolone 27°C, pH 7.4 656091 1.1.1.145 0.0181 - dehydroepiandrosterone mutant C111S, pH 7.4 688685 1.1.1.145 0.0184 - 16beta-hydroxy-dehydroepiandrosterone wild-type 3beta-HSD2, pH 7.4, 27°C 725813 1.1.1.145 0.019 - NAD+ mutant C111S, pH 7.4 688685 1.1.1.145 0.0194 - NAD+ mutant C72S, presence of 2-mercatoethanol pH 7.4 688685 1.1.1.145 0.0196 - 16alpha-hydroxy-dehydroepiandrosterone mutant R195P, pH 7.4, 27°C 725813 1.1.1.145 0.02 - NAD+ - 389372 1.1.1.145 0.02 - pregnenolone NAD+ as cofactor 389402 1.1.1.145 0.0205 - NAD+ mutant R195P, pH 7.4, 27°C 725813 1.1.1.145 0.0205 - NAD+ pH 7.4, 27°C, wild-type enzyme 763397 1.1.1.145 0.0227 - NAD+ mutant C111A, presence of 2-mercatoethanol pH 7.4 688685 1.1.1.145 0.023 - pregnenolone pH 8.5, 37°C 685186 1.1.1.145 0.0237 - dehydroepiandrosterone mutant C111A, presence of 2-mercatoethanol pH 7.4 688685 1.1.1.145 0.024 - all-trans-retinal pH 7.4, 25°C 684725 1.1.1.145 0.02402 - dehydrotomatidine pH 7.2, 30°C 763569 1.1.1.145 0.0244 - NAD+ pH 7.4, 27°C, chimeric R195P-1 mutant of the enzyme (3beta-HSD1) 763397 1.1.1.145 0.025 - dehydroepiandrosterone pH 7.4, 27°C, recombinant isozyme 3beta-HSD2 mutant Q105M 662371 1.1.1.145 0.025 - NAD+ 27°C, pH 7.4, H156Y mutant 656788 1.1.1.145 0.025 - NAD+ 27°C, pH 7.4, H156Y mutant 3beta-HSD1 656091 1.1.1.145 0.0255 - NAD+ mutant C111A, pH 7.4 688685 1.1.1.145 0.0256 - NAD+ pH 7.4, 27°C, recombinant isozyme 3beta-HSD1 mutant Q240R 662371 1.1.1.145 0.0268 - dehydroepiandrosterone mutant C111A, pH 7.4 688685 1.1.1.145 0.028 - 5alpha-androstane-3,17-dione pH 7.4, 25°C 684725 1.1.1.145 0.0299 - NAD+ mutant C83A, presence of 2-mercatoethanol pH 7.4 688685 1.1.1.145 0.0327 - dehydroepiandrosterone pH 7.4, 27°C, recombinant isozyme 3beta-HSD2 mutant R240Q 662371 1.1.1.145 0.0333 - NAD+ mutant E192A, pH 7.4, 27°C 725813 1.1.1.145 0.034 - NAD+ 27°C, pH 7.4 656091, 656577, 656788 1.1.1.145 0.0341 - NAD+ in 0.02 M potassium phosphate buffer, pH 7.4 700182 1.1.1.145 0.0341 - NAD+ pH 7.4, 27°C, chimeric S194G-1 mutant of the enzyme (3beta-HSD1) 763397 1.1.1.145 0.0341 - NAD+ pH 7.4, 27°C, recombinant wild-type isozyme 3beta-HSD1 662371 1.1.1.145 0.0341 - NAD+ wild-type 3beta-HSD1, pH 7.4, 27°C 725813 1.1.1.145 0.0341 - NAD+ wild-type, pH 7.4 688685 1.1.1.145 0.0346 - progesterone - 389394 1.1.1.145 0.035 - Dehydrolithocholic acid pH 7.4, 25°C 684725 1.1.1.145 0.0351 - dehydroepiandrosterone mutant E192A, pH 7.4, 27°C 725813 1.1.1.145 0.0351 - NAD+ mutant E192A, pH 7.4, 27°C 725813 1.1.1.145 0.036 - hexanophenone pH 7.4, 25°C 684725 1.1.1.145 0.036 - NAD+ 27°C, pH 7.4, S123A mutant 3betaHSD1 656577 1.1.1.145 0.0372 - NAD+ pH 7.4, 27°C, recombinant isozyme 3beta-HSD2 mutant R240Q 662371 1.1.1.145 0.0388 - NAD+ pH 7.4, 27°C, recombinant isozyme 3beta-HSD1 mutant Q105M 662371 1.1.1.145 0.04 - dehydroepiandrosterone mutant Q105M, pH 7.4, 27°C 725820 1.1.1.145 0.0405 - dehydroepiandrosterone pH 7.4, 27°C, recombinant isozyme 3beta-HSD1 mutant Q105M 662371 1.1.1.145 0.042 - dehydroepiandrosterone 27°C, pH 7.4, H156Y mutant 656788 1.1.1.145 0.042 - dehydroepiandrosterone 27°C, pH 7.4, H156Y mutant 3beta-HSD1 656091 1.1.1.145 0.042 - dehydroepiandrosterone pH 7.4, H156Y mutant 655345 1.1.1.145 0.0424 - dehydroepiandrosterone mutant H156Y, pH 7.4, 27°C 725820 1.1.1.145 0.0424 - dehydroepiandrosterone pH 7.4, 27°C, recombinant mutant H156Y 656091 1.1.1.145 0.045 - NAD+ - 389377 1.1.1.145 0.04534 - pregnenolone pH 7.2, 30°C 763569 1.1.1.145 0.0461 - 11beta,17alpha,21-trihydroxy-5beta-pregnane-3,20-dione - 389394 1.1.1.145 0.0468 - NAD+ mutant C72F, pH 7.4 688685 1.1.1.145 0.047 - dehydroepiandrosterone 27°C, pH 7.4 655345, 656091, 656788 1.1.1.145 0.047 - dehydroepiandrosterone pH and temperature not specified in the publication 762899 1.1.1.145 0.0473 - dehydroepiandrosterone pH 7.4, 27°C, recombinant wild-type isozyme 3beta-HSD2 656091, 662371 1.1.1.145 0.0476 - NAD+ mutant C72F, presence of 2-mercatoethanol pH 7.4 688685 1.1.1.145 0.048 - n-butyrophenone pH 7.4, 25°C 684725 1.1.1.145 0.05 - pregnenolone 27°C, pH 7.4 656091 1.1.1.145 0.054 - valerophenone pH 7.4, 25°C 684725 1.1.1.145 0.0564 - NAD+ mutant R195R, pH 7.4, 27°C 725813 1.1.1.145 0.0583 - testosterone - 389394 1.1.1.145 0.0614 - NAD+ pH 7.4, 27°C, recombinant isozyme 3beta-HSD2 mutant Q105M 662371 1.1.1.145 0.0621 - 13,14-dihydro-15-keto-prostaglandin F2 - 389394 1.1.1.145 0.0643 - dehydroepiandrosterone mutant D61N, pH 7.4, 27°C 725813 1.1.1.145 0.0643 - NAD+ mutant D61N, pH 7.4, 27°C 725813 1.1.1.145 0.0703 - androstenedione - 389394 1.1.1.145 0.0732 - NAD+ mutant C83A, pH 7.4 688685 1.1.1.145 0.0827 - 11beta,17alpha,21-trihydroxy-5alpha-pregnane-3,20-dione - 389394 1.1.1.145 0.086 - NAD+ 27°C, pH 7.4 656091, 656788 1.1.1.145 0.0863 - NAD+ pH 7.4, 27°C, recombinant wild-type isozyme 3beta-HSD2 662371 1.1.1.145 0.0863 - NAD+ pH 7.4, 27°C, wild-type enzyme 763397 1.1.1.145 0.0863 - NAD+ wild-type 3beta-HSD2, pH 7.4, 27°C 725813 1.1.1.145 0.089 - 1,4-Naphthoquinone pH 7.4, 25°C 684725 1.1.1.145 0.09 - pregnenolone pH 7.8, 30°C 689697 1.1.1.145 0.093 - (S)-1-tetralol pH 7.4, 25°C 684725 1.1.1.145 0.106 - NADH pH 7.8, 30°C 689697 1.1.1.145 0.11 - 5beta-pregnane-3beta-ol-20-one NAD+ as cofactor 389402 1.1.1.145 0.114 - dehydroepiandrosterone - 389394 1.1.1.145 0.116 - 5alpha-pregnane-3beta-ol-20-one pH 7.8, 30°C 689697 1.1.1.145 0.12 - 5alpha-pregnane-3beta-ol-20-one NAD+ as cofactor 389402 1.1.1.145 0.12 - 6-tert-butyl-2,3-epoxy-5-cyclohexene-1,4-dione pH 7.4, 25°C 684725 1.1.1.145 0.122 - D-glucose - 389394 1.1.1.145 0.123 - 5beta-androstane-3,17-dione - 389394 1.1.1.145 0.13 - 13,14-dihydro-15-keto-prostaglandin F2alpha - 389394 1.1.1.145 0.13 - androst-5-ene-3beta-ol-17-one NAD+ as cofactor 389402 1.1.1.145 0.137 - 4-Nitroacetophenone - 389394 1.1.1.145 0.16 - 4-hexanoylpyridine pH 7.4, 25°C 684725 1.1.1.145 0.172 - NAD+ cosubstrate pregnenolone, pH 8.5, 37°C 685186 1.1.1.145 0.18 - menadione pH 7.4, 25°C 684725 1.1.1.145 0.196 - 5alpha-pregnane-3,20-dione pH 7.8, 30°C 689697 1.1.1.145 0.2 - 2,3-heptanedione pH 7.4, 25°C 684725 1.1.1.145 0.206 - 17-hydroxyprogesterone - 389394 1.1.1.145 0.217 - 5alpha-pregnane-3,20-dione - 389394 1.1.1.145 0.221 - dehydroepiandrosterone pH 8.5, 37°C 685186 1.1.1.145 0.231 - 17beta-hydroxy-5beta-androstane-3-one - 389394 1.1.1.145 0.2313 - pregnenolone pH 7.8, 30°C 763139 1.1.1.145 0.24 - (S)-1-indanol pH 7.4, 25°C 684725 1.1.1.145 0.2419 - dehydroepiandrosterone pH 7.8, 30°C 763139 1.1.1.145 0.246 - 5beta-pregnane-3,20-dione - 389394 1.1.1.145 0.26 - NAD+ pH 7.8, 30°C 689697 1.1.1.145 0.27 - NAD+ cosubstrate dehydroepiandrosterone, pH 8.5, 37°C 685186 1.1.1.145 0.287 - D-galactose - 389394 1.1.1.145 0.314 - 5beta-pregnane-3beta-ol-20-one pH 7.8, 30°C 689697 1.1.1.145 0.319 - 4-carboxybenzaldehyde - 389394 1.1.1.145 0.32 - isatin pH 7.4, 25°C 684725 1.1.1.145 0.373 - prostaglandin E1 - 389394 1.1.1.145 0.465 - D-glucuronic acid - 389394 1.1.1.145 0.466 - hydritantin - 389394 1.1.1.145 0.467 - D-xylose - 389394 1.1.1.145 0.55 - 2,3-Hexanedione pH 7.4, 25°C 684725 1.1.1.145 0.555 - Camphorquinone - 389394 1.1.1.145 0.642 - 5-androsten-3beta-ol-17-one pH 7.8, 30°C 689697 1.1.1.145 0.684 - 17beta-hydroxy-5alpha-androstane-3-one - 389394 1.1.1.145 0.69 - caprinaldehyde - 389394 1.1.1.145 0.693 - menadione - 389394 1.1.1.145 1 - 4-benzoylpyridine pH 7.4, 25°C 684725 1.1.1.145 1.043 - 5alpha-androstane-3,17-dione - 389394 1.1.1.145 1.07 - D-glyceraldehyde - 389394 1.1.1.145 1.4 - dimethyl-2-oxo-glutarate pH 7.4, 25°C 684725 1.1.1.145 1.663 - cyclohexanone - 389394 1.1.1.145 1.725 - 5beta-pregnane-3,20-dione pH 7.8, 30°C 689697 1.1.1.145 1.966 - 4-nitrobenzaldehyde - 389394 1.1.1.145 2.097 - 4-benzylpyridine - 389394 1.1.1.145 2.366 - Phenylglyoxal - 389394 1.1.1.145 2.408 - 9,10-phenanthrenequinone - 389394 1.1.1.145 2.651 - methylglyoxal - 389394 1.1.1.145 4.9 - NADP+ - 389369 1.1.1.145 10 - 2,3-Pentanedione pH 7.4, 25°C 684725 1.1.1.145 13 - 4-nitrobenzaldehyde pH 7.4, 25°C 684725 1.1.1.145 13 - NADP+ - 389377 1.1.1.145 21 - Pyridine-4-aldehyde pH 7.4, 25°C 684725 1.1.1.145 54 - diacetyl pH 7.4, 25°C 684725