29 November 2009 at 13:29 Name Synonym Mol. Form. CAS Reg. No. Mol. Wt. Step t/°C pKa Acetaldehyde Ethanal C2H4O 75-07-0 44.052 25 13.57 Acetamide Ethanamide C2H5NO 60-35-5 59.067 25 15.1 Acetanilide N-Phenylacetamide C8H9NO 103-84-4 135.163 25 0.5 Acetazolamide N-[5-(Aminosulfonyl)-1,3,4-thiadiazol-2-yl]acetamide C4H6N4O3S2 59-66-5 222.246 7.2 Acetic acid Ethanoic acid C2H4O2 64-19-7 60.052 25 4.756 Acetoacetic acid C4H6O3 541-50-4 102.089 25 3.6 Acetohydroxamic acid N-Hydroxyacetamide C2H5NO2 546-88-3 75.067 8.70 N-Acetylglycine Aceturic acid C4H7NO3 543-24-8 117.104 25 3.67 2-(Acetyloxy)benzoic acid Acetylsalicylic acid C9H8O4 50-78-2 180.158 25 3.48 Aconine C25H41NO9 509-20-6 499.596 9.52 Aconitine C34H47NO11 302-27-2 645.737 5.88 9-Acridinamine Aminacrine C13H10N2 90-45-9 194.231 20 9.99 Acridine Dibenzo[b,e]pyridine C13H9N 260-94-6 179.217 20 5.58 3,6-Acridinediamine Proflavine C13H11N3 92-62-6 209.246 20 9.65 Acrylic acid 2-Propenoic acid C3H4O2 79-10-7 72.063 25 4.25 Adenine 1H-Purin-6-amine C5H5N5 73-24-5 135.128 1 4.3 Adenine 1H-Purin-6-amine C5H5N5 73-24-5 135.128 2 9.83 Adenosine β-D-Ribofuranoside, adenine-9 C10H13N5O4 58-61-7 267.242 1 25 3.6 Adenosine β-D-Ribofuranoside, adenine-9 C10H13N5O4 58-61-7 267.242 2 25 12.4 5'-Adenylic acid Adenosine 5'-monophosphate C10H14N5O7P 61-19-8 347.222 1 3.8 5'-Adenylic acid Adenosine 5'-monophosphate C10H14N5O7P 61-19-8 347.222 2 6.2 Adipamic acid C6H11NO3 334-25-8 145.156 25 4.63 Agaritine L-Glutamic acid, 5-[2-[4-(hydroxymethyl)phenyl]hydrazide] C12H17N3O4 2757-90-6 267.281 1 3.4 Agaritine L-Glutamic acid, 5-[2-[4-(hydroxymethyl)phenyl]hydrazide] C12H17N3O4 2757-90-6 267.281 2 8.86 L-Alanine 2-Aminopropanoic acid, (S)- C3H7NO2 56-41-7 89.094 1 25 2.34 L-Alanine 2-Aminopropanoic acid, (S)- C3H7NO2 56-41-7 89.094 2 25 9.87 β-Alanine 3-Aminopropanoic acid C3H7NO2 107-95-9 89.094 1 25 3.55 β-Alanine 3-Aminopropanoic acid C3H7NO2 107-95-9 89.094 2 25 10.24 Allantoin C4H6N4O3 97-59-6 158.116 25 8.96 Allopurinol 1,5-Dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one C5H4N4O 315-30-0 136.112 10.2 Alloxanic acid C4H4N2O5 470-44-0 160.085 25 6.64 Allyl alcohol 2-Propen-1-ol C3H6O 107-18-6 58.079 25 15.5 Allylamine 2-Propen-1-amine C3H7N 107-11-9 57.095 25 9.49 N-Allylaniline Allylphenylamine C9H11N 589-09-3 133.190 25 4.17 Aminoacetonitrile C2H4N2 540-61-4 56.066 25 5.34 2-Aminoadipic acid C6H11NO4 626-71-1 161.156 1 25 2.14 2-Aminoadipic acid C6H11NO4 626-71-1 161.156 2 25 4.21 2-Aminoadipic acid C6H11NO4 626-71-1 161.156 3 25 9.77 4-Aminoazobenzene C12H11N3 60-09-3 197.235 25 2.82 2-Aminobenzenesulfonic acid Orthanilic acid C6H7NO3S 88-21-1 173.190 25 2.46 3-Aminobenzenesulfonic acid Metanilic acid C6H7NO3S 121-47-1 173.190 25 3.74 4-Aminobenzenesulfonic acid Sulfanilic acid C6H7NO3S 121-57-3 173.190 25 3.23 2-Aminobenzonitrile C7H6N2 1885-29-6 118.136 25 0.77 3-Aminobenzonitrile C7H6N2 2237-30-1 118.136 25 2.75 4-Aminobenzonitrile C7H6N2 873-74-5 118.136 25 1.74 2-Aminobiphenyl C12H11N 90-41-5 169.222 25 3.83 3-Aminobiphenyl C12H11N 2243-47-2 169.222 18 4.25 4-Aminobiphenyl p-Biphenylamine C12H11N 92-67-1 169.222 18 4.35 DL-2-Aminobutanoic acid C4H9NO2 2835-81-6 103.120 1 25 2.29 DL-2-Aminobutanoic acid C4H9NO2 2835-81-6 103.120 2 25 9.83 4-Aminobutanoic acid γ-Aminobutyric acid C4H9NO2 56-12-2 103.120 1 25 4.031 4-Aminobutanoic acid γ-Aminobutyric acid C4H9NO2 56-12-2 103.120 2 25 10.556 2-Aminoethanesulfonic acid Taurine C2H7NO3S 107-35-7 125.147 1 25 1.5 2-Aminoethanesulfonic acid Taurine C2H7NO3S 107-35-7 125.147 2 25 9.06 4-(2-Aminoethyl)phenol Tyramine C8H11NO 51-67-2 137.179 1 25 9.74 4-(2-Aminoethyl)phenol Tyramine C8H11NO 51-67-2 137.179 2 25 10.52 6-Aminohexanoic acid ε-Aminocaproic acid C6H13NO2 60-32-2 131.173 1 25 4.37 6-Aminohexanoic acid ε-Aminocaproic acid C6H13NO2 60-32-2 131.173 2 25 10.80 Copyright © CRC Press 2004 Page 1 29 November 2009 at 13:29 4-Amino-2-hydroxybenzoic acid p-Aminosalicylic acid C7H7NO3 65-49-6 153.136 3.25 2-Amino-4-hydroxypteridine C6H5N5O 2236-60-4 163.137 1 20 2.27 2-Amino-4-hydroxypteridine C6H5N5O 2236-60-4 163.137 2 20 7.96 5-Amino-1-naphthol 1-Amino-6-hydroxynaphthalene C10H9NO 83-55-6 159.184 25 3.97 5-Amino-4-oxopentanoic acid 5-Aminolevulinic acid C5H9NO3 106-60-5 131.130 1 25 4.05 5-Amino-4-oxopentanoic acid 5-Aminolevulinic acid C5H9NO3 106-60-5 131.130 2 25 8.90 5-Aminopentanoic acid C5H11NO2 660-88-8 117.147 1 25 4.27 5-Aminopentanoic acid C5H11NO2 660-88-8 117.147 2 25 10.77 2-Aminophenol C6H7NO 95-55-6 109.126 1 20 4.78 2-Aminophenol C6H7NO 95-55-6 109.126 2 20 9.97 3-Aminophenol C6H7NO 591-27-5 109.126 1 20 4.37 3-Aminophenol C6H7NO 591-27-5 109.126 2 20 9.82 4-Aminophenol C6H7NO 123-30-8 109.126 1 25 5.48 4-Aminophenol C6H7NO 123-30-8 109.126 2 25 10.30 3-Aminopropanenitrile 3-Aminopropionitrile C3H6N2 151-18-8 70.093 20 7.80 4-Amino-3,5,6-trichloro-2-pyridinecarboxlic acid Picloram C6H3Cl3N2O2 1918-02-1 241.459 3.6 Amiodarone C25H29I2NO3 1951-25-3 645.312 25 6.56 Amitriptyline C20H23N 50-48-6 277.404 9.4 Amobarbital 5-Ethyl-5-isopentyl-2,4,6(1H,3H,5H)-pyrimidinetrione C11H18N2O3 57-43-2 226.272 25 8.0 Aniline Benzenamine C6H7N 62-53-3 93.127 25 4.87 Aniline-2-carboxylic acid o-Anthranilic acid C7H7NO2 118-92-3 137.137 1 25 2.17 Aniline-2-carboxylic acid o-Anthranilic acid C7H7NO2 118-92-3 137.137 2 25 4.85 Aniline-3-carboxylic acid m-Anthranilic acid C7H7NO2 99-05-8 137.137 1 25 3.07 Aniline-3-carboxylic acid m-Anthranilic acid C7H7NO2 99-05-8 137.137 2 25 4.79 Aniline-4-carboxylic acid p-Anthranilic acid C7H7NO2 150-13-0 137.137 1 25 2.50 Aniline-4-carboxylic acid p-Anthranilic acid C7H7NO2 150-13-0 137.137 2 25 4.87 Apomorphine C17H17NO2 58-00-4 267.323 1 7.0 Apomorphine C17H17NO2 58-00-4 267.323 2 8.92 Arecoline C8H13NO2 63-75-2 155.195 6.84 L-Arginine C6H14N4O2 74-79-3 174.201 1 25 1.82 L-Arginine C6H14N4O2 74-79-3 174.201 2 25 8.99 L-Arginine C6H14N4O2 74-79-3 174.201 3 25 12.5 L-Argininosuccinic acid C10H18N4O5 2387-71-5 274.274 1 25 1.62 L-Argininosuccinic acid C10H18N4O5 2387-71-5 274.274 2 25 2.70 L-Argininosuccinic acid C10H18N4O5 2387-71-5 274.274 3 25 4.26 L-Argininosuccinic acid C10H18N4O5 2387-71-5 274.274 4 25 9.58 L-Ascorbic acid Vitamin C C6H8O6 50-81-7 176.124 1 25 4.04 L-Ascorbic acid Vitamin C C6H8O6 50-81-7 176.124 2 16 11.7 L-Asparagine α-Aminosuccinamic acid C4H8N2O3 70-47-3 132.118 1 20 2.1 L-Asparagine α-Aminosuccinamic acid C4H8N2O3 70-47-3 132.118 2 20 8.80 L-Aspartic acid L-Aminosuccinic acid C4H7NO4 56-84-8 133.104 1 25 1.99 L-Aspartic acid L-Aminosuccinic acid C4H7NO4 56-84-8 133.104 2 25 3.90 L-Aspartic acid L-Aminosuccinic acid C4H7NO4 56-84-8 133.104 3 25 9.90 Aspergillic acid C12H20N2O2 490-02-8 224.299 5.5 Atenolol C14H22N2O3 29122-68-7 266.336 9.6 Atisine Anthorine C22H33NO2 466-43-3 343.503 12.2 Azaserine C5H7N3O4 115-02-6 173.128 8.55 Azathioprine 1H-Purine, 6-[(1-methyl-4-nitro-1H-imidazol-5-yl)thio]- C9H7N7O2S 446-86-6 277.263 8.2 6-Azauridine 2-β-D-Ribofuranosyl-1,2,4-triazine-3,5(2H,4H)-dione C8H11N3O6 54-25-1 245.189 6.70 Azetidine C3H7N 503-29-7 57.095 25 11.29 Barbital 5,5-Diethylbarbituric acid C8H12N2O3 57-44-3 184.192 25 7.43 Barbituric acid C4H4N2O3 67-52-7 128.086 25 4.01 Benzaldehyde Benzenecarboxaldehyde C7H6O 100-52-7 106.122 25 14.90 Benzamide Benzoic acid amide C7H7NO 55-21-0 121.137 25 ≈13 Benzeneacetic acid Phenylacetic acid C8H8O2 103-82-2 136.149 25 4.31 Benzeneboronic acid C6H7BO2 98-80-6 121.930 8.83 Benzenebutanoic acid C10H12O2 1821-12-1 164.201 25 4.76 1,2-Benzenediamine o-Phenylenediamine C6H8N2 95-54-5 108.141 1 20 4.57 1,2-Benzenediamine o-Phenylenediamine C6H8N2 95-54-5 108.141 2 20 0.80 Copyright © CRC Press 2004 Page 2 29 November 2009 at 13:29 1,3-Benzenediamine m-Phenylenediamine C6H8N2 108-45-2 108.141 1 20 5.11 1,3-Benzenediamine m-Phenylenediamine C6H8N2 108-45-2 108.141 2 20 2.50 1,4-Benzenediamine p-Phenylenediamine C6H8N2 106-50-3 108.141 1 20 6.31 1,4-Benzenediamine p-Phenylenediamine C6H8N2 106-50-3 108.141 2 20 2.97 Benzeneethanamine 2-Phenylethylamine C8H11N 64-04-0 121.180 25 9.83 Benzenemethanethiol Thiobenzyl alcohol C7H8S 100-53-8 124.204 25 9.43 Benzenepropanoic acid Hydrocinnamic acid C9H10O2 501-52-0 150.174 25 4.66 Benzenesulfinic acid C6H6O2S 618-41-7 142.176 20 1.3 Benzenesulfonic acid Besylic acid C6H6O3S 98-11-3 158.175 25 0.70 Benzenethiol Phenyl mercaptan C6H6S 108-98-5 110.177 25 6.62 p-Benzidine [1,1'-Biphenyl]-4,4'-diamine C12H12N2 92-87-5 184.236 1 20 4.65 p-Benzidine [1,1'-Biphenyl]-4,4'-diamine C12H12N2 92-87-5 184.236 2 20 3.43 1H-Benzimidazole N,N'-Methenyl-o-phenylenediamine C7H6N2 51-17-2 118.136 25 5.53 Benzoic acid Benzenecarboxylic acid C7H6O2 65-85-0 122.122 25 4.204 1H-Benzotriazole 1,2,3-Triaza-1H-indene C6H5N3 95-14-7 119.124 20 1.6 N-Benzoylglycine Hippuric acid C9H9NO3 495-69-2 179.172 25 3.62 Benzpiperylon 1,2-Dihydro-2-(1-methyl-4-piperidinyl)-5-phenyl-4-benzyl- C22H25N3O 53-89-4 347.453 1 6.73 3H-pyrazol-3-one Benzpiperylon 1,2-Dihydro-2-(1-methyl-4-piperidinyl)-5-phenyl-4-benzyl- C22H25N3O 53-89-4 347.453 2 9.13 3H-pyrazol-3-one Benzylamine Benzenemethanamine C7H9N 100-46-9 107.153 25 9.34 4-Benzylaniline C13H13N 1135-12-2 183.249 25 2.17 2-Benzylpyridine C12H11N 101-82-6 169.222 25 5.13 Betaine 1-Carboxy-N,N,N-trimethylmethanaminium, inner salt C5H11NO2 107-43-7 117.147 0 1.83 Biguanide Imidodicarbonimidic diamide C2H7N5 56-03-1 101.111 1 11.52 Biguanide Imidodicarbonimidic diamide C2H7N5 56-03-1 101.111 2 2.93 N,N-Bis(2-hydroxyethyl)glycine Bicine C6H13NO4 150-25-4 163.172 2 20 8.35 Bithionol C12H6Cl4O2S 97-18-7 356.052 1 4.82 Bithionol C12H6Cl4O2S 97-18-7 356.052 2 10.50 Bornylamine 1,7,7-Trimethylbicyclo[2.2.1]heptan-2-amine,