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Drybench

Reagent formula weights

One page for each reagent in Drybench Calc's reagent table except those listed below: its formula as weighed, its formula weight with and without water of crystallisation, and its element composition. Each page opens the molarity calculator with the reagent chosen.

Selection: the reagents of the table built on 2026-10-21, except those whose table form or weight is not the one usually weighed (ATP disodium salt, Kanamycin sulfate, NAD+ and Spermidine).

ReagentFormula as weighedFormula weight (g/mol)
Tris baseC4H11NO3121.136
Tris hydrochlorideC4H12ClNO3157.594
HEPESC8H18N2O4S238.302
HEPES sodium saltC8H17N2NaO4S260.284
MOPSC7H15NO4S209.260
MES (anhydrous)C6H13NO4S195.233
MES monohydrateC6H13NO4S·H2O213.248
PIPESC8H18N2O6S2302.360
BicineC6H13NO4163.173
TricineC6H13NO5179.172
CHESC8H17NO3S207.288
TAPSC7H17NO6S243.274
TESC6H15NO6S229.247
CAPSC9H19NO3S221.315
ImidazoleC3H4N268.079
GlycineC2H5NO275.067
Sodium acetate (anhydrous)C2H3NaO282.034
Sodium acetate trihydrateC2H3NaO2·3H2O136.079
Acetic acidC2H4O260.052
Citric acid (anhydrous)C6H8O7192.123
Citric acid monohydrateC6H8O7·H2O210.138
Sodium citrate dihydrateC6H5Na3O7·2H2O294.099
Sodium phosphate monobasic monohydrateH2NaO4P·H2O137.991
Sodium phosphate dibasic (anhydrous)HNa2O4P141.958
Sodium phosphate dibasic heptahydrateHNa2O4P·7H2O268.063
Potassium phosphate monobasicH2KO4P136.084
Potassium phosphate dibasic (anhydrous)HK2O4P174.174
Sodium bicarbonateCHNaO384.006
Sodium carbonate (anhydrous)CNa2O3105.988
Boric acidBH3O361.831
Ammonium acetateC2H7NO277.083
Ammonium chlorideClH4N53.489
Ammonium sulfateH8N2O4S132.134
Sodium chlorideClNa58.440
Potassium chlorideClK74.548
Calcium chloride (anhydrous)CaCl2110.978
Calcium chloride dihydrateCaCl2·2H2O147.008
Magnesium chloride hexahydrateCl2Mg·6H2O203.295
Magnesium sulfate (anhydrous)MgO4S120.361
Magnesium sulfate heptahydrateMgO4S·7H2O246.466
Zinc chlorideCl2Zn136.280
Zinc sulfate heptahydrateO4SZn·7H2O287.541
Copper(II) sulfate pentahydrateCuO4S·5H2O249.677
Iron(III) chloride hexahydrateCl3Fe·6H2O270.285
Manganese(II) chloride tetrahydrateCl2Mn·4H2O197.898
Lithium chlorideClLi42.390
Caesium chlorideClCs168.360
Sodium azideN3Na65.011
Sodium hydroxideHNaO39.997
Potassium hydroxideHKO56.105
EDTAC10H16N2O8292.244
EDTA disodium salt dihydrateC10H14N2Na2O8·2H2O372.238
EGTAC14H24N2O10380.350
DTTC4H10O2S2154.242
TCEP hydrochlorideC9H16ClO6P286.645
2-MercaptoethanolC2H6OS78.129
GlycerolC3H8O392.094
D-Glucose (anhydrous)C6H12O6180.156
D-Glucose monohydrateC6H12O6·H2O198.171
SucroseC12H22O11342.297
D-Trehalose dihydrateC12H22O11·2H2O378.327
D-MannitolC6H14O6182.172
UreaCH4N2O60.056
Guanidine hydrochlorideCH6ClN395.530
SDSC12H25NaO4S288.378
CHAPSC32H58N2O7S614.883
PMSFC7H7FO2S174.189
IPTGC9H18O5S238.298
Ampicillin sodiumC16H18N3NaO4S371.387
ChloramphenicolC11H12Cl2N2O5323.126
DMSOC2H6OS78.129

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