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| Carbon number | formula, CAS | δ2H | δ13C |
| 1 | Methane #1, CH4, CAS # 74-82-8 | -160.8 ± 2.1 ‰ from -158.8 to -164.2 ‰ n = 9 | -38.25 ± 0.03 ‰ from -38.23 to -38.30 ‰ n = 6 |
| 1 | Methane #2, CH4, CAS # 74-82-8 | -41.3 ± 1.3 ‰ from -39.7 to -42.6 ‰ n = 4 | -37.60 ± 0.03 ‰ from -37.57 to -37.62 ‰ n = 3 |
| 1 | Methane #3, CH4, CAS # 74-82-8 | +2.2 ± 1.2 ‰ from +0.4 to +3.7 ‰ n = 6 | +19.86 ± 0.05 ‰ from +19.81 to +19.94 ‰ n = 5 |
| 1 | Methane #5, CH4, CAS # 74-82-8 | -69.8 ± 2.5 ‰ from -66.0 to -73.6 ‰ n = 6 | -22.44 ± 0.03 ‰ from -22.40 to -22.48 ‰ n = 7 |
| 1 | Methane #6, CH4, CAS # 74-82-8 | -153.0 ± 2.0 ‰ from -150.6 to -155.2 ‰ n = 5 | -39.40 ± 0.02 ‰ from -39.38 to -39.42 ‰ n = 6 |
| 2 | Ethane #1, C2H6, ≥ 99 %, CAS # 74-84-0 | ’-132.7 ± 1.5 ‰ from -130.3 to -134.1 ‰ n = 5 | ’-29.54 ± 0.01 ‰ from -29.52 to -29.55 ‰ n = 5 |
| 2 | Ethane #2, C2H6, ≥ 99 %, CAS # 74-84-0 | ‘-31.6 ± 1.1 ‰ from -30.2 to -32.6 ‰ n = 5 | ‘-25.50 ± 0.01 ‰ from -25.48 to -25.51 ‰ n = 4 |
| 2 | Ethane #3, C2H6, ≥ 99 %, CAS # 74-84-0, | ‘+100.1 ± 2.7 ‰ from +95.5 to +102.7 ‰ n = 5 | ’-11.39 ± 0.02 ‰ from -11.37 to -11.42 ‰ n = 5 |
| 3 | Propane #1, C3H8, ≥ 99 %, CAS # 74-98-6 | ’-165.9 ± 1.4 ‰ from -165.1 to -167.5 ‰ n = 3 | ’-33.29 ± 0.03 ‰ from -33.26 to -33.32 ‰ n = 3 |
| 5 | n -Pentane, C5H12, CAS # 109-66-0 | ’-117.5 ± 1.0 ‰ from -116.1 to -118.9 ‰ n = 6 | ’-27.19 ± 0.02 ‰ from -27.17 to -27.22 ‰ n = 4 |
| 8 | n -Octane, C8H18, CAS # 111-65-9 | ’-77.6 ± 0.7 ‰ from -76.5 to -78.4 ‰ n = 7 | ’-31.75 ± 0.01 ‰ from -31.74 to -31.77 ‰ n = 4 |
| 12 | Dodecane #1, C12 n -alkane #1, C12H26, CAS # 112-40-3 | ’-62.5 ± 2.2 ‰ from -60.2 to -64.7 ‰ n = 4 | ’-31.99 ± 0.04 ‰ from -31.94 to -32.04 ‰ n = 6 |
| 12 | Dodecane #2, C12 n -alkane #2, C12H26, CAS # 112-40-3 | ’-84.5 ± 0.4 ‰ from -84.2 to -85.1 ‰ n = 4 | ’-32.00 ± 0.03 ‰ from -31.95 to -32.03 ‰ n = 5 |
| 14 | Tetradecane, C14 n -alkane, C14H30,CAS # 629-59-4 | ’-71.7 ± 1.4 ‰ from -69.3 to -73.5 ‰ n = 6 | ’-30.69 ± 0.03 ‰ from -30.67 to -30.72 ‰ n = 3 |
| 15 | Pentadecane #1, C15 n -alkane #1, C15H32, CAS # 629-62-9 | ’-88.4 ± 1.2 ‰ from -86.7 to -90.9 ‰ n = 10 | ’-29.25 ± 0.01 ‰ from -29.25 to -29.26 ‰ n = 3 |
| 15 | Pentadecane #2, C15 n -alkane #2, C15H32, CAS # 629-62-9 | ’-85.8 ± 2.2 ‰ from -83.2 to -88.0 ‰ n = 7 | ’-29.93 ± 0.02 ‰ from -29.91 to -29.97 ‰ n = 5 |
| 16 | Hexadecane #2, C16 n -alkane #2, C16H34, CAS # 544-76-3 | ’-9.1 ± 1.4 ‰ from -7.9 to -11.1 ‰ n = 7 | ’-26.15 ± 0.02 ‰ from -26.13 to -26.17 ‰ n = 5 |
| 16 | Hexadecane #3, USGS67, C16 n - alkane #3, C16H34, ≥ 99 %, CAS # 544-763 | ’-166.2 ± 1.0 ‰ n = 163 | ’-34.50 ± 0.05 ‰ n = 99 |
| 16 | Hexadecane #B, USGS68, C16 n - alkane #B, C16H34, contains spikes of 1-2 H and 1,2-13C2, ≥ 99 %, CAS # 544-76-3 | ’-10.2 ± 0.9 ‰ n = 147 | ’-10.55 ± 0.04 ‰ n = 91 |
| 16 | Hexadecane #C, USGS69, C16 n - alkane #C, C16H34, contains spikes of 1-2 H and 1,2-13C2, ≥ 99 %, CAS # 544-76-3 | ‘+381.4 ± 3.5 ‰ n = 132 | ’-0.57 ± 0.04 ‰ n = 86 |
| 17 | Heptadecane #2, C17 n -alkane #2, C17H36, CAS # 629-78-7 | ‘+381.4 ± 3.5 ‰ n = 132 | ’-31.87 ± 0.02 ‰ from -31.84 to -31.90 ‰ n = 8 |
| 18 | Octadecane #1, C18 n -alkane #1, C18H38, CAS # 593-45-3 | ‘-53.8 ± 2.1 ‰ from -50.9 to -55.7 ‰ n = 4 | ’-31.11 ± 0.02 ‰ from -31.08 to -31.14 ‰ n = 8 |
| 18 | Octadecane #2, C18 n -alkane #2, C18H38, CAS # 593-45-3 | ‘-52.0 ± 1.1 ‰ from -50.6 to -53.5 ‰ n = 5 | ‘-32.70 ± 0.01 ‰ from -32.69 to -32.72 ‰ n = 5 |
| 19 | Nonadecane #2, C19 n -alkane #2, C19H40, CAS # 629-92-5 | ’-56.3 ± 1.0 ‰ from -55.0 to -57.5 ‰ n = 5 | ‘-31.99 ± 0.01 ‰ from -31.98 to -32.02 ‰ n = 6 |
| 20 | Eicosane #1, icosane #1, C20 n - alkane, C20H42, CAS # 112-95-8 | ‘-52.6 ± 0.8 ‰ from -51.6 to -53.7 ‰ n = 5 | ’-32.35 ± 0.04 ‰ from -32.31 to -32.39 ‰ n = 4 |
| 20 | Eicosane #2, icosane #2, C20 n - alkane, C20H42, CAS # 112-95-8 | ‘-89.7 ± 1.7 ‰ from -87.3 to -91.2 ‰ n = 4 | ’-33.97 ± 0.02 ‰ from -33.93 to -33.98 ‰ n = 6 |
| 20 | Eicosane #3, icosane #3, C20 n - alkane, C20H42, CAS # 112-95-8 | ‘-177.6 ± 1.1 ‰ from -176.4 to -179.3 ‰ n = 5 | ’-40.91 ± 0.02 ‰ from -40.89 to -40.94 ‰ n = 7 |
| 20 | Eicosane #4, icosane #4, C20 n - alkane, C20H42, CAS # 112-95-8 | ‘-49.6 ± 2.1 ‰ from -47.2 to -52.3 ‰ n = 4 | ’-31.88 ± 0.02 ‰ from -31.85 to -31.90 ‰ n = 7 |
| 21 | Heneicosane #2, C21 n -alkane #2, C21H44, CAS # 629-94-7 | ‘-177.8 ± 1.5 ‰ from -176.1 to -179.5 ‰ n = 6 | ’-28.83 ± 0.02 ‰ from -28.81 to -28.85 ‰ n = 5 |
| 21 | Heneicosane #3, C21 n -alkane #3, C21H44, CAS # 629-94-7 | ‘-205.3 ± 2.5 ‰ from -202.3 to -207.9 ‰ n = 6 | ’-29.40 ± 0.02 ‰ from -29.38 to -29.43 ‰ n = 5 |
| 22 | Docosane #1, C22 n -alkane #1, C22H46, CAS # 629-97-0, | ‘-62.8 ± 1.6 ‰ from -60.9 to -64.9 ‰ n = 6 | ’-32.87 ± 0.03 ‰ from -32.84 to -32.91 ‰ n = 5 |
| 22 | Docosane #2, C22 n -alkane #2, C22H46, CAS # 629-97-0 | ‘-81.3 ± 1.8 ‰ from -79.4 to -83.2 ‰ n = 5 | ’-33.77 ± 0.02 ‰ from -33.75 to -33.79 ‰ n = 4 |
| 22 | Docosane #3, C22 n -alkane #3, C22H46, CAS # 629-97-0, | ‘-68.2 ± 1.8 ‰ from -65.7 to -70.4 ‰ n = 5 | ’-34.89 ± 0.02 ‰ from -34.87 to -34.92 ‰ n = 6 |
| 22 | Docosane #4, C22 n -alkane #4, C22H46, CAS # 629-97-0 | ‘-158.7 ± 0.9 ‰ from -157.1 to -160.0 ‰ n = 6 | ’-29.19 ± 0.03 ‰ from -29.15 to -29.23 ‰ n = 5 |
| 22 | Docosane #M, C22 n -alkane #M, C22H46, CAS # 629-97-0 | ‘-74.8 ± 1.8 ‰ from -72.6 to -76.8 ‰ n = 5 | ’-34.33 ± 0.02 ‰ from -34.31 to -34.36 ‰ n = 5 |
| 23 | Tricosane #1, C23 n -alkane #1, C23H48 #1, CAS # 638-67-5 | ‘-48.8 ± 1.4 ‰ from -47.0 to -51.2 ‰ n = 6 | ‘-31.77 ± 0.01 ‰ from -31.76 to -31.77 ‰ n = 5 |
| 23 | Tricosane #2, C23 n -alkane #2, C23H48 #1, CAS # 638-67-5 | ’-67.2 ± 1.1 ‰ from -65.6 to -68.6 ‰ n = 6 | ‘-33.37 ± 0.03 ‰ from -33.33 to -33.40 ‰ n = 5 |
| 23 | Tricosane #3, C23 n -alkane #3, C23H48 #1, CAS # 638-67-5 | ’-65.6 ± 2.0 ‰ from -63.2 to -68.3 ‰ n = 6 | ‘-33.34 ± 0.01 ‰ from -33.33 to -33.36 ‰ n = 6 |
| 23 | Tricosane #4, C23 n -alkane #4, C23H48 #1, CAS # 638-67-5, | ’-68.7 ± 1.0 ‰ from -67.3 to -69.6 ‰ n = 6 | ‘-33.34 ± 0.01 ‰ from -33.32 to -33.36 ‰ n = 5 |
| 24 | Tetracosane #1, C24 n -alkane #1, C24H50, CAS # 646-31-1 | ’-53.0 ± 1.6 ‰ from -50.7 to -54.5 ‰ n = 4 | ‘-33.34 ± 0.02 ‰ from -33.32 to -33.36 ‰ n = 6 |
| 24 | Tetracosane #2, C24 n -alkane #2, C24H50, CAS # 646-31-1 | ’-29.7 ± 1.5 ‰ from -28.2 to -31.8 ‰ n = 6 | ‘-32.13 ± 0.02 ‰ from -32.11 to -32.16 ‰ n = 6 |
| 25 | Pentacosane #3, C25 n -alkane #3, C25H52, CAS # 629-99-2 | ’-254.1 ± 1.5 ‰ from -252.0 to -256.1 ‰ n = 5 | ‘-28.48 ± 0.02 ‰ from -28.45 to -28.51 ‰ n = 7 |
| 25 | Pentacosane #4, C25 n -alkane #4, C25H52, CAS # 629-99-2 | ’-263.6 ± 2.2 ‰ from -260.5 to -266.2 ‰ n = 5 | ‘-28.46 ± 0.02 ‰ from -28.42 to -28.48 ‰ n = 7 |
| 26 | Hexacosane #2, C26 n -alkane #2, C26H54, CAS # 630-01-3 | ’-45.9 ± 1.0 ‰ from -44.4 to -46.7 ‰ n = 5 | ‘-32.94 ± 0.01 ‰ from -32.92 to -32.95 ‰ n = 8 |
| 27 | Heptacosane #1, C27 n-alkane #1, C27H56, CAS # 593-49-7 | ’-227.3 ± 2.0 ‰ from -225.‰ to -229.6 ‰ n = 3 | ‘-28.61 ± 0.02 ‰ from -28.59 to -28.65 ‰ n = 6 |
| 27 | Heptacosane #2, C27 n-alkane #2, C27H56, CAS # 593-49-7 | ’-178.2 ± 2.5 ‰ from -173.8 to -181.5 ‰ n = 9 | ‘-29.56 ± 0.01 ‰ from -29.55 to -29.57 ‰ n = 4 |
| 27 | Heptacosane #3, C27 n-alkane #3, C27H56, CAS # 593-49-7 | ’-172.8 ± 1.6 ‰ from -170.6 to -175.1 ‰ n = 6 | ‘-30.49 ± 0.01 ‰ from -30.47 to -30.50 ‰ n = 5 |
| 27 | Heptacosane #4, C27 n-alkane #4, C27H56, CAS # 593-49-7, | ’-192.5 ± 1.4 ‰ from -190.4 to -194.1 ‰ n = 5 | ‘-31.11 ± 0.01 ‰ from -31.11 to -31.12 ‰ n = 5 |
| 28 | Octacosane #2, C28 n -alkane #2, C28H58, CAS # 630-02-4 | ’-36.8 ± 1.3 ‰ from -35.6 to -38.9 ‰ n = 5 | ‘-33.20 ± 0.01 ‰ from -33.20 to -33.20 ‰ n = 5 |
| 29 | Nonacosane #1, C29 n -alkane #1, C29H60, CAS # 630-03-5 | ’-179.3 ± 2.7 ‰ from -177.0 to -183.0 ‰ n = 5 | ‘-31.08 ± 0.02 ‰ from -31.06 to -31.10 ‰ n = 3 |
| 29 | Nonacosane #3, C29 n -alkane #3, C29H60, CAS # 630-03-5 | ’-177.8 ± 1.3 ‰ from -176.0 to -179.7 ‰ n = 10 | ‘-29.10 ± 0.01 ‰ from -29.08 to -29.11 ‰ n = 5 |
| 29 | Nonacosane #4, C29 n -alkane #4, C29H60, CAS # 630-03-5 | ’-162.6 ± 2.2 ‰ from -160.6 to -165.0 ‰ n = 4 | ‘-29.30 ± 0.02 ‰ from -29.27 to -29.32 ‰ n = 5 |
| 29 | Nonacosane #5, C29 n -alkane #5, C29H60, CAS # 630-03-5 | ’-85.4 ± 1.4 ‰ from -82.9 to -86.8 ‰ n = 6 | ‘-31.83 ± 0.02 ‰ from -31.80 to -31.85 ‰ n = 5 |
| 30 | Triacontane #1, C30 n -alkane #1, C30H62, CAS # 638-68-6 | ’-46.3 ± 2.1 ‰ from -42.1 to -49.4 ‰ n = 8 | ‘-33.15 ± 0.02 ‰ from -33.13 to -33.18 ‰ n = 9 |
| 30 | Triacontane #2, C30 n -alkane #2, C30H62, CAS # 638-68-6 | ’-213.4 ± 1.2 ‰ from -211.8 to -215.0 ‰ n = 8 | ‘-29.86 ± 0.01 ‰ from -29.86 to -29.87 ‰ n = 4 |
| 30 | Triacontane #3, C30 n -alkane #3, C30H62, CAS # 638-68-6 | ’-213.6 ± 2.4 ‰ from -210.5 to -216.1 ‰ n = 6 | ‘-29.84 ± 0.01 ‰ from -29.82 to -29.85 ‰ n = 5 |
| 30 | Triacontane #4, C30 n -alkane #4, C30H62, CAS # 638-68-6 | ’-41.5 ± 0.7 ‰ from -40.9 to -42.9 ‰ n = 6 | ‘-33.14 ± 0.02 ‰ from -33.12 to -33.16 ‰ n = 6 |
| 31 | Hentriacontane, C31 n -alkane, C31H64, CAS # 630-04-6 | ’-271.9 ± 2.0 ‰ from -268.7 to -274.1 ‰ n = 9 | ‘-29.43 ± 0.01 ‰ from -29.41 to -29.44 ‰ n = 5 |
| 32 | Dotriacontane, C32 n -alkane, C32H66, CAS # 544-85-4 | ’-212.4 ± 1.0 ‰ from -211.5 to -213.3 ‰ n = 4 | ‘-29.47 ± 0.02 ‰ from -29.45 to -29.50 ‰ n = 6 |
| 33 | Triatriacontane #1, C33 n -alkane #1, C33H68, CAS # 630-05-7 | ’-207.0 ± 1.7 ‰ from -204.7 to -208.6 ‰ n = 5 | ‘-28.36 ± 0.01 ‰ from -28.36 to -28.37 ‰ n = 5 |
| 34 | Tetratriacontane, C34 n -alkane, C34H70, CAS # 14167-59-0 | ’-231.8 ± 1.4 ‰ from -230.0 to -233.4 ‰ n = 4 | ‘-29.54 ± 0.02 ‰ from -29.53 to -29.56 ‰ n = 5 |
| 35 | Pentatriacontane #1, C35 n -alkane #1, C35H72, CAS # 630-07-9 | ’-194.8 ± 0.9 ‰ from -193.3 to -195.7 ‰ n = 5 | ‘-29.84 ± 0.01 ‰ from -29.84 to -29.85 ‰ n = 3 |
| 35 | Pentatriacontane #2, C35 n -alkane #2, C35H72, CAS # 630-07-9, | ’-179.3 ± 1.9 ‰ from -177.1 to -181.7 ‰ n = 4 | ‘-30.48 ± 0.02 ‰ from -30.46 to -30.51 ‰ n = 5 |
| 36 | Hexatriacontane #2, C36 n -alkane #2, C36H74, CAS # 630-06-8 | ’-259.2 ± 1.3 ‰ from -257.5 to -261.0 ‰ n = 7 | ‘-29.95 ± 0.02 ‰ from -29.92 to -29.97 ‰ n = 8 |
| 37 | Heptatriacontane, C37 n -alkane, C37H76, CAS # 7194-84-5 | ’-180.1 ± 1.8 ‰ from -177.4 to -181.5 ‰ n = 4 | ‘-30.24 ± 0.03 ‰ from -30.21 to -30.27 ‰ n = 4 |
| 38 | Octatriacontane, C38 n -alkane, C38H78, CAS # 7194-85-6 | ’-102.6 ± 1.3 ‰ from -101.7 to -104.0 ‰ n = 3 | ‘-31.49 ± 0.01 ‰ from -31.47 to -31.50 ‰ n = 5 |
| 39 | Nonatriacontane, C39 n -alkane, C39H80, CAS # 7194-86-7 | ’-218.6 ± 2.3 ‰ from -215.2 to -221.7 ‰ n = 10 | ‘-28.68 ± 0.01 ‰ from -28.67 to -28.69 ‰ n = 4 |
| 40 | Tetracontane, C40 n -alkane, C40H82, CAS # 4181-95-7 | ’-106.7 ± 0.3 ‰ from -106.4 to -107.0 ‰ n = 3 | ‘-32.20 ± 0.04 ‰ from -32.16 to -32.25 ‰ n = 4 |
| 41 | Hentetracontane #1, C41 n -alkane #1, C41H84, CAS # 7194-87-8 | ’-206.0 ± 1.7 ‰ from -204.1 to -208.3 ‰ n = 7 | ‘-28.97 ± 0.01 ‰ from -28.95 to -28.98 ‰ n = 5 |
| 41 | Hentetracontane #2, C41 n -alkane #2, C41H84, CAS # 7194-87-8 | ’-196.5 ± 2.0 ‰ from -194.0 to -199.4 ‰ n = 5 | ‘-29.23 ± 0.02 ‰ from -29.21 to -29.25 ‰ n = 5 |
| 44 | Tetratetracontane #1, C44 n -alkane #1, C44H90, CAS # 7098-22-8 | ’-199.9 ± 2.0 ‰ from -197.7 to -201.6 ‰ n = 3 | ‘-29.12 ± 0.02 ‰ from -29.10 to -29.15 ‰ n = 5 |
| 44 | Tetratetracontane #2, C44 n -alkane #2, C44H90, CAS # 7098-22-8 | ’-199.8 ± 1.3 ‰ from -198.6 to -201.5 ‰ n = 6 | ‘-29.07 ± 0.02 ‰ from -29.05 to -29.10 ‰ n = 4 |
| 50 | Pentacontane, C50 n -alkane, C50H102, CAS # 6596-40-3 | -191.3 ± 1.0 ‰ from -190.6 to -192.0 ‰ n = 2 | -27.79 ± 0.03 ‰ from -27.77 to -27.83 ‰ n = 6 |
| n | Polyethylene powder, USGS77, low density, 1000 μm, CAS # 9002-88-4 | -75.9 ± 0.6 ‰ n = 199 | -30.71 ± 0.04 ‰ n = 81 |
| n | Polyethylene line NDF-PE77 (extruded from powder USGS77; isotopically indistinguishable from powder), lowdensity, CAS # 9002-88-4 | indistinguishable from USGS77 (see above) | indistinguishable from USGS77 (see above) |
