diff --git a/src/data/vapor-pressure-constants.ts b/src/data/vapor-pressure-constants.ts
index 87fbe26..e4c8a95 100644
--- a/src/data/vapor-pressure-constants.ts
+++ b/src/data/vapor-pressure-constants.ts
@@ -1803,6 +1803,351 @@ export const DIPPRVaporPressureDictionary: Record<
     pressureAtMinimumTemperature: 2.53e3,
     pressureAtMaximumTemperature: 5.158e6,
   },
+
+  DiphenylEther: {
+    name: 'Diphenyl ether',
+    formula: 'C12H10O',
+    CAS: '101-84-8',
+    C1: 59.969,
+    C2: -8585.5,
+    C3: -5.1538,
+    C4: 2.0e-18,
+    C5: 6,
+    minimumTemperature: 300.03,
+    maximumTemperature: 766.8,
+    pressureAtMinimumTemperature: 7.09,
+    pressureAtMaximumTemperature: 3.097e6,
+  },
+
+  DipropylAmine: {
+    name: 'Dipropyl amine',
+    formula: 'C6H15N',
+    CAS: '142-84-7',
+    C1: 54,
+    C2: -6018.5,
+    C3: -4.4981,
+    C4: 9.97e-18,
+    C5: 6,
+    minimumTemperature: 210.15,
+    maximumTemperature: 550,
+    pressureAtMinimumTemperature: 3.69,
+    pressureAtMaximumTemperature: 3.111e6,
+  },
+
+  Dodecane: {
+    name: 'Dodecane',
+    formula: 'C12H26',
+    CAS: '112-40-3',
+    C1: 137.47,
+    C2: -11976,
+    C3: -16.698,
+    C4: 8.0906e-6,
+    C5: 2,
+    minimumTemperature: 263.57,
+    maximumTemperature: 658,
+    pressureAtMinimumTemperature: 6.15e-1,
+    pressureAtMaximumTemperature: 1.822e6,
+  },
+
+  Eicosane: {
+    name: 'Eicosane',
+    formula: 'C20H42',
+    CAS: '112-95-8',
+    C1: 203.66,
+    C2: -19441,
+    C3: -25.525,
+    C4: 8.8382e-6,
+    C5: 2,
+    minimumTemperature: 309.58,
+    maximumTemperature: 768,
+    pressureAtMinimumTemperature: 9.26e-3,
+    pressureAtMaximumTemperature: 1.175e6,
+  },
+
+  Ethane: {
+    name: 'Ethane',
+    formula: 'C2H6',
+    CAS: '74-84-0',
+    C1: 51.857,
+    C2: -2598.7,
+    C3: -5.1283,
+    C4: 0.000014913,
+    C5: 2,
+    minimumTemperature: 90.35,
+    maximumTemperature: 305.32,
+    pressureAtMinimumTemperature: 1.13,
+    pressureAtMaximumTemperature: 4.852e6,
+  },
+
+  Ethanol: {
+    name: 'Ethanol',
+    formula: 'C2H6O',
+    CAS: '64-17-5',
+    C1: 73.304,
+    C2: -7122.3,
+    C3: -7.1424,
+    C4: 2.8853e-6,
+    C5: 2,
+    minimumTemperature: 159.05,
+    maximumTemperature: 514,
+    pressureAtMinimumTemperature: 4.96e-4,
+    pressureAtMaximumTemperature: 6.109e6,
+  },
+
+  EthylAcetate: {
+    name: 'Ethyl acetate',
+    formula: 'C4H8O2',
+    CAS: '141-78-6',
+    C1: 66.824,
+    C2: -6227.6,
+    C3: -6.41,
+    C4: 1.79e-17,
+    C5: 6,
+    minimumTemperature: 189.6,
+    maximumTemperature: 523.3,
+    pressureAtMinimumTemperature: 1.43,
+    pressureAtMaximumTemperature: 3.85e6,
+  },
+
+  EthylAmine: {
+    name: 'Ethyl amine',
+    formula: 'C2H7N',
+    CAS: '75-04-7',
+    C1: 81.56,
+    C2: -5596.9,
+    C3: -9.0779,
+    C4: 0.000008792,
+    C5: 2,
+    minimumTemperature: 192.15,
+    maximumTemperature: 456.15,
+    pressureAtMinimumTemperature: 1.52e2,
+    pressureAtMaximumTemperature: 5.594e6,
+  },
+
+  Ethylbenzene: {
+    name: 'Ethylbenzene',
+    formula: 'C8H10',
+    CAS: '100-41-4',
+    C1: 89.063,
+    C2: -7733.7,
+    C3: -9.917,
+    C4: 0.000005986,
+    C5: 2,
+    minimumTemperature: 178.2,
+    maximumTemperature: 617.15,
+    pressureAtMinimumTemperature: 3.91e-3,
+    pressureAtMaximumTemperature: 3.59e6,
+  },
+
+  EthylBenzoate: {
+    name: 'Ethyl benzoate',
+    formula: 'C9H10O2',
+    CAS: '93-89-0',
+    C1: 52.923,
+    C2: -7531.7,
+    C3: -4.2347,
+    C4: 1.1835e-6,
+    C5: 2,
+    minimumTemperature: 238.45,
+    maximumTemperature: 698,
+    pressureAtMinimumTemperature: 1.69e-1,
+    pressureAtMaximumTemperature: 3.203e6,
+  },
+
+  '2EthylButanoicAcid': {
+    name: '2-Ethyl butanoic acid',
+    formula: 'C6H12O2',
+    CAS: '88-09-5',
+    C1: 90.464,
+    C2: -10243,
+    C3: -9.2836,
+    C4: 5.26e-18,
+    C5: 6,
+    minimumTemperature: 258.15,
+    maximumTemperature: 655,
+    pressureAtMinimumTemperature: 4.63e-1,
+    pressureAtMaximumTemperature: 3.403e6,
+  },
+
+  EthylButyrate: {
+    name: 'Ethyl butyrate',
+    formula: 'C6H12O2',
+    CAS: '105-54-4',
+    C1: 57.661,
+    C2: -6346.5,
+    C3: -5.032,
+    C4: 8.25e-18,
+    C5: 6,
+    minimumTemperature: 175.15,
+    maximumTemperature: 571,
+    pressureAtMinimumTemperature: 1.04e-2,
+    pressureAtMaximumTemperature: 2.935e6,
+  },
+
+  Ethylcyclohexane: {
+    name: 'Ethylcyclohexane',
+    formula: 'C8H16',
+    CAS: '1678-91-7',
+    C1: 80.208,
+    C2: -7203.2,
+    C3: -8.6023,
+    C4: 4.5901e-6,
+    C5: 2,
+    minimumTemperature: 161.84,
+    maximumTemperature: 609.15,
+    pressureAtMinimumTemperature: 3.57e-4,
+    pressureAtMaximumTemperature: 3.041e6,
+  },
+
+  Ethylcyclopentane: {
+    name: 'Ethylcyclopentane',
+    formula: 'C7H14',
+    CAS: '1640-89-7',
+    C1: 88.671,
+    C2: -7012.7,
+    C3: -10.045,
+    C4: 7.4578e-6,
+    C5: 2,
+    minimumTemperature: 134.71,
+    maximumTemperature: 569.5,
+    pressureAtMinimumTemperature: 3.71e-6,
+    pressureAtMaximumTemperature: 3.412e6,
+  },
+
+  Ethylene: {
+    name: 'Ethylene',
+    formula: 'C2H4',
+    CAS: '74-85-1',
+    C1: 53.963,
+    C2: -2443,
+    C3: -5.5643,
+    C4: 0.000019079,
+    C5: 2,
+    minimumTemperature: 104,
+    maximumTemperature: 282.34,
+    pressureAtMinimumTemperature: 1.26e2,
+    pressureAtMaximumTemperature: 5.032e6,
+  },
+
+  Ethylenediamine: {
+    name: 'Ethylenediamine',
+    formula: 'C2H8N2',
+    CAS: '107-15-3',
+    C1: 73.51,
+    C2: -7572.7,
+    C3: -7.1435,
+    C4: 1.21e-17,
+    C5: 6,
+    minimumTemperature: 284.29,
+    maximumTemperature: 593,
+    pressureAtMinimumTemperature: 6.78e2,
+    pressureAtMaximumTemperature: 6.29e6,
+  },
+
+  EthyleneGlycol: {
+    name: 'Ethylene glycol',
+    formula: 'C2H6O2',
+    CAS: '107-21-1',
+    C1: 84.09,
+    C2: -10411,
+    C3: -8.1976,
+    C4: 1.65e-18,
+    C5: 6,
+    minimumTemperature: 260.15,
+    maximumTemperature: 720,
+    pressureAtMinimumTemperature: 2.19e-1,
+    pressureAtMaximumTemperature: 8.257e6,
+  },
+
+  Ethyleneimine: {
+    name: 'Ethyleneimine',
+    formula: 'C2H5N',
+    CAS: '151-56-4',
+    C1: 66.51,
+    C2: -6019.2,
+    C3: -6.3332,
+    C4: 1.04e-17,
+    C5: 6,
+    minimumTemperature: 195.2,
+    maximumTemperature: 537,
+    pressureAtMinimumTemperature: 9.71,
+    pressureAtMaximumTemperature: 6.85e6,
+  },
+
+  EthyleneOxide: {
+    name: 'Ethylene oxide',
+    formula: 'C2H4O',
+    CAS: '75-21-8',
+    C1: 91.944,
+    C2: -5293.4,
+    C3: -11.682,
+    C4: 0.014902,
+    C5: 1,
+    minimumTemperature: 160.65,
+    maximumTemperature: 469.15,
+    pressureAtMinimumTemperature: 7.79,
+    pressureAtMaximumTemperature: 7.255e6,
+  },
+
+  EthylFormate: {
+    name: 'Ethyl formate',
+    formula: 'C3H6O2',
+    CAS: '109-94-4',
+    C1: 73.833,
+    C2: -5817,
+    C3: -7.809,
+    C4: 0.00000632,
+    C5: 2,
+    minimumTemperature: 193.55,
+    maximumTemperature: 508.4,
+    pressureAtMinimumTemperature: 1.81e1,
+    pressureAtMaximumTemperature: 4.708e6,
+  },
+
+  '2EthylHexanoicAcid': {
+    name: '2-Ethyl hexanoic acid',
+    formula: 'C8H16O2',
+    CAS: '149-57-5',
+    C1: 122.364,
+    C2: -13308.8,
+    C3: -13.5709,
+    C4: 6.42e-18,
+    C5: 6,
+    minimumTemperature: 155.15,
+    maximumTemperature: 674.6,
+    pressureAtMinimumTemperature: 1.44e-14,
+    pressureAtMaximumTemperature: 2.78e6,
+  },
+
+  EthylhexylEther: {
+    name: 'Ethylhexyl ether',
+    formula: 'C8H18O',
+    CAS: '5756-43-6',
+    C1: 77.523,
+    C2: -7978.8,
+    C3: -7.7757,
+    C4: 1.01e-17,
+    C5: 6,
+    minimumTemperature: 180,
+    maximumTemperature: 583,
+    pressureAtMinimumTemperature: 7.6e-4,
+    pressureAtMaximumTemperature: 2.46e6,
+  },
+
+  EthylisopropylEther: {
+    name: 'Ethylisopropyl ether',
+    formula: 'C5H12O',
+    CAS: '625-54-7',
+    C1: 57.723,
+    C2: -5236.9,
+    C3: -5.2136,
+    C4: 2.3e-17,
+    C5: 6,
+    minimumTemperature: 140,
+    maximumTemperature: 489,
+    pressureAtMinimumTemperature: 4.31e-3,
+    pressureAtMaximumTemperature: 3.414e6,
+  },
 } as const;
 
 export function calculateDIPPRVaporPressure(