To convert this data to absorbance A=-log10(T), multiply by the molar concentration and the pathlength in centimeters. To convert this data to absorption coefficient in (cm-1), multiply by the molar concentration and 2.303.
lambda Extinction nm cm-1/M 270.75 17258 271.00 16359 271.25 15457 271.50 14723 271.75 13907 272.00 13191 272.25 12459 272.50 11824 272.75 11253 273.00 10660 273.25 10130 273.50 9607 273.75 9135 274.00 8653 274.25 8269 274.50 7891 274.75 7451 275.00 7039 275.25 6633 275.50 6251 275.75 5940 276.00 5654 276.25 5373 276.50 5127 276.75 4906 277.00 4710 277.25 4521 277.50 4346 277.75 4172 278.00 4025 278.25 3872 278.50 3703 278.75 3588 279.00 3427 279.25 3321 279.50 3215 279.75 3114 280.00 2997 280.25 2901 280.50 2808 280.75 2701 281.00 2623 281.25 2519 281.50 2445 281.75 2377 282.00 2306 282.25 2241 282.50 2162 282.75 2106 283.00 2020 283.25 1984 283.50 1907 283.75 1843 284.00 1814 284.25 1740 284.50 1712 284.75 1639 285.00 1604 285.25 1568 285.50 1508 285.75 1487 286.00 1438 286.25 1392 286.50 1351 286.75 1320 287.00 1289 287.25 1277 287.50 1228 287.75 1201 288.00 1196 288.25 1140 288.50 1137 288.75 1088 289.00 1065 289.25 1041 289.50 1010 289.75 989 290.00 971 290.25 963 290.50 912 290.75 909 291.00 872 291.25 858 291.50 828 291.75 827 292.00 805 292.25 781 292.50 763 292.75 725 293.00 742 293.25 701 293.50 686 293.75 689 294.00 651 294.25 648 294.50 632 294.75 613 295.00 617 295.25 590 295.50 574 295.75 568 296.00 550 296.25 537 296.50 517 296.75 525 297.00 499 297.25 478 297.50 479 297.75 452 298.00 445 298.25 430 298.50 431 298.75 418 299.00 401 299.25 406 299.50 395 299.75 396 300.00 400 300.25 390 300.50 388 300.75 397 301.00 376 301.25 383 301.50 382 301.75 373 302.00 374 302.25 388 302.50 395 302.75 396 303.00 394 303.25 387 303.50 389 303.75 398 304.00 430 304.25 407 304.50 413 304.75 407 305.00 417 305.25 427 305.50 432 305.75 441 306.00 451 306.25 449 306.50 471 306.75 456 307.00 458 307.25 464 307.50 462 307.75 481 308.00 472 308.25 485 308.50 488 308.75 482 309.00 486 309.25 500 309.50 525 309.75 475 310.00 588 310.25 535 310.50 558 310.75 549 311.00 492 311.25 506 311.50 627 311.75 565 312.00 578 312.25 631 312.50 660 312.75 625 313.00 649 313.25 639 313.50 660 313.75 642 314.00 720 314.25 688 314.50 754 314.75 798 315.00 779 315.25 821 315.50 808 315.75 889 316.00 928 316.25 995 316.50 968 316.75 1007 317.00 1017 317.25 1071 317.50 1061 317.75 1122 318.00 1154 318.25 1179 318.50 1138 318.75 1204 319.00 1230 319.25 1314 319.50 1293 319.75 1286 320.00 1330 320.25 1334 320.50 1364 320.75 1345 321.00 1414 321.25 1419 321.50 1386 321.75 1513 322.00 1435 322.25 1503 322.50 1483 322.75 1495 323.00 1522 323.25 1503 323.50 1541 323.75 1470 324.00 1503 324.25 1492 324.50 1497 324.75 1497 325.00 1526 325.25 1526 325.50 1533 325.75 1593 326.00 1543 326.25 1573 326.50 1567 326.75 1606 327.00 1709 327.25 1687 327.50 1691 327.75 1769 328.00 1776 328.25 1740 328.50 1844 328.75 1926 329.00 1911 329.25 1991 329.50 2065 329.75 2054 330.00 2213 330.25 2165 330.50 2236 330.75 2354 331.00 2491 331.25 2523 331.50 2530 331.75 2613 332.00 2689 332.25 2793 332.50 2788 332.75 2999 333.00 2983 333.25 3053 333.50 3103 333.75 3261 334.00 3301 334.25 3393 334.50 3383 334.75 3543 335.00 3479 335.25 3570 335.50 3642 335.75 3676 336.00 3753 336.25 3742 336.50 3803 336.75 3843 337.00 3862 337.25 3949 337.50 3939 337.75 3909 338.00 3989 338.25 3974 338.50 4004 338.75 3925 339.00 3938 339.25 3946 339.50 3851 339.75 3890 340.00 3844 340.25 3838 340.50 3799 340.75 3757 341.00 3763 341.25 3743 341.50 3749 341.75 3714 342.00 3722 342.25 3682 342.50 3697 342.75 3671 343.00 3715 343.25 3714 343.50 3795 343.75 3803 344.00 3916 344.25 3880 344.50 3955 344.75 3994 345.00 4075 345.25 4224 345.50 4279 345.75 4340 346.00 4399 346.25 4568 346.50 4637 346.75 4794 347.00 4969 347.25 5082 347.50 5243 347.75 5356 348.00 5501 348.25 5660 348.50 5851 348.75 6039 349.00 6139 349.25 6372 349.50 6517 349.75 6668 350.00 6873 350.25 7027 350.50 7259 350.75 7378 351.00 7512 351.25 7772 351.50 7846 351.75 8064 352.00 8133 352.25 8293 352.50 8397 352.75 8476 353.00 8581 353.25 8620 353.50 8650 353.75 8675 354.00 8724 354.25 8703 354.50 8690 354.75 8684 355.00 8580 355.25 8610 355.50 8499 355.75 8453 356.00 8295 356.25 8210 356.50 8176 356.75 8088 357.00 7918 357.25 7814 357.50 7669 357.75 7605 358.00 7453 358.25 7314 358.50 7275 358.75 7126 359.00 7042 359.25 6893 359.50 6800 359.75 6710 360.00 6654 360.25 6582 360.50 6487 360.75 6469 361.00 6413 361.25 6377 361.50 6312 361.75 6325 362.00 6335 362.25 6343 362.50 6394 362.75 6409 363.00 6516 363.25 6539 363.50 6711 363.75 6756 364.00 6841 364.25 6972 364.50 7141 364.75 7347 365.00 7462 365.25 7656 365.50 7798 365.75 8019 366.00 8167 366.25 8366 366.50 8561 366.75 8788 367.00 9009 367.25 9283 367.50 9580 367.75 9789 368.00 10121 368.25 10378 368.50 10679 368.75 11045 369.00 11282 369.25 11623 369.50 11929 369.75 12199 370.00 12538 370.25 12779 370.50 13011 370.75 13268 371.00 13350 371.25 13616 371.50 13706 371.75 13763 372.00 13875 372.25 13867 372.50 14000 372.75 13929 373.00 13869 373.25 13817 373.50 13766 373.75 13663 374.00 13513 374.25 13455 374.50 13305 374.75 13272 375.00 13207 375.25 12985 375.50 12845 375.75 12548 376.00 12404 376.25 12101 376.50 11856 376.75 11591 377.00 11263 377.25 11022 377.50 10712 377.75 10423 378.00 10172 378.25 9912 378.50 9602 378.75 9359 379.00 9095 379.25 8880 379.50 8611 379.75 8281 380.00 8103 380.25 7875 380.50 7645 380.75 7478 381.00 7351 381.25 7139 381.50 6996 381.75 6932 382.00 6816 382.25 6749 382.50 6720 382.75 6675 383.00 6659 383.25 6674 383.50 6703 383.75 6743 384.00 6827 384.25 6913 384.50 6966 384.75 7001 385.00 7106 385.25 7253 385.50 7309 385.75 7449 386.00 7599 386.25 7695 386.50 7853 386.75 8013 387.00 8183 387.25 8341 387.50 8565 387.75 8844 388.00 9048 388.25 9300 388.50 9536 388.75 9862 389.00 10223 389.25 10592 389.50 10866 389.75 11166 390.00 11468 390.25 11824 390.50 12119 390.75 12367 391.00 12565 391.25 12764 391.50 12969 391.75 13121 392.00 13188 392.25 13398 392.50 13351 392.75 13384 393.00 13344 393.25 13301 393.50 13221 393.75 13201 394.00 13005 394.25 12981 394.50 12787 394.75 12608 395.00 12389 395.25 12079 395.50 11826 395.75 11518 396.00 11276 396.25 10963 396.50 10684 396.75 10412 397.00 10169 397.25 9847 397.50 9514 397.75 9267 398.00 8936 398.25 8665 398.50 8373 398.75 8042 399.00 7739 399.25 7455 399.50 7138 399.75 6824 400.00 6569 400.25 6281 400.50 5988 400.75 5737 401.00 5475 401.25 5227 401.50 4995 401.75 4760 402.00 4521 402.25 4287 402.50 4085 402.75 3857 403.00 3678 403.25 3460 403.50 3266 403.75 3097 404.00 2948 404.25 2749 404.50 2597 404.75 2460 405.00 2321 405.25 2167 405.50 2058 405.75 1922 406.00 1805 406.25 1737 406.50 1627 406.75 1515 407.00 1415 407.25 1304 407.50 1242 407.75 1139 408.00 1096 408.25 994 408.50 966 408.75 909 409.00 824 409.25 778 409.50 746 409.75 704 410.00 630 410.25 612 410.50 567 410.75 518 411.00 505 411.25 451 411.50 442 411.75 436 412.00 382 412.25 356 412.50 300 412.75 321 413.00 301 413.25 298 413.50 255 413.75 225 414.00 214 414.25 217 414.50 219 414.75 203 415.00 173 415.25 169 415.50 149 415.75 145 416.00 155 416.25 130 416.50 130 416.75 117 417.00 80 417.25 92 417.50 88 417.75 100 418.00 66 418.25 59 418.50 58 418.75 72 419.00 62 419.25 56 419.50 53 419.75 51 420.00 49 420.25 34 420.50 29 420.75 38 421.00 16 421.25 21 421.50 11 421.75 36 422.00 16 422.25 15 422.50 4 422.75 5 423.00 0 423.25 0 423.50 3 423.75 28 424.00 0 424.25 0 424.50 11 424.75 0 425.00 9 425.25 0 425.50 0 425.75 10 426.00 0 426.25 0 426.50 1 426.75 0 427.00 0 427.25 0 427.50 0 427.75 0 428.00 7 428.25 0 428.50 0 428.75 0 429.00 0 429.25 0 429.50 0 429.75 0 430.00 0 430.25 0 430.50 0 430.75 0 431.00 0 431.25 12 431.50 0 431.75 0 432.00 0 432.25 0 432.50 0 432.75 0 433.00 0 433.25 0 433.50 0 433.75 0 434.00 0 434.25 0 434.50 0 434.75 0 435.00 0 435.25 4 435.50 0 435.75 0 436.00 0 436.25 0 436.50 0 436.75 0 437.00 0 437.25 0 437.50 0 437.75 0 438.00 0 438.25 0 438.50 0 438.75 0 439.00 0 439.25 0 439.50 0 439.75 0 440.00 0 440.25 0 440.50 0 440.75 0 441.00 6 441.25 0 441.50 0 441.75 0 442.00 0 442.25 0 442.50 0 442.75 0 443.00 0 443.25 0 443.50 0 443.75 0 444.00 0 444.25 0 444.50 0 444.75 0 445.00 0 445.25 0 445.50 0 445.75 0 446.00 0 446.25 0 446.50 0 446.75 0 447.00 0 447.25 0 447.50 0 447.75 0 448.00 0 448.25 0 448.50 0 448.75 0 449.00 0 449.25 0 449.50 0 449.75 0 450.00 0 450.25 0 450.50 0 450.75 0 451.00 0 451.25 0 451.50 0 451.75 0 452.00 0 452.25 0 452.50 0 452.75 0 453.00 0 453.25 0 453.50 0 453.75 0 454.00 0 454.25 0 454.50 0 454.75 0 455.00 0 455.25 0 455.50 0 455.75 0 456.00 0 456.25 0 456.50 0 456.75 0 457.00 0 457.25 0 457.50 0 457.75 0 458.00 0 458.25 0 458.50 0 458.75 0 459.00 0 459.25 0 459.50 0 459.75 0 460.00 0 460.25 0 460.50 0 460.75 0 461.00 0 461.25 0 461.50 0 461.75 0 462.00 0 462.25 0 462.50 0 462.75 0 463.00 0 463.25 0 463.50 0 463.75 0 464.00 0 464.25 0 464.50 0 464.75 0 465.00 0 465.25 0 465.50 0 465.75 0 466.00 0 466.25 0 466.50 0 466.75 0 467.00 0 467.25 2 467.50 0 467.75 0 468.00 0 468.25 0 468.50 0 468.75 0 469.00 0 469.25 0 469.50 0 469.75 0 470.00 0 470.25 0 470.50 0 470.75 0 471.00 0 471.25 0 471.50 0 471.75 0 472.00 0 472.25 0 472.50 0 472.75 0 473.00 0 473.25 0 473.50 0 473.75 0 474.00 0 474.25 0 474.50 4 474.75 0 475.00 0 475.25 0 475.50 0 475.75 0 476.00 0 476.25 0 476.50 0 476.75 0 477.00 0 477.25 0 477.50 0 477.75 0 478.00 0 478.25 0 478.50 0 478.75 0 479.00 0 479.25 0 479.50 0 479.75 0 480.00 0 480.25 0 480.50 0 480.75 0 481.00 0 481.25 0 481.50 0 481.75 0 482.00 0 482.25 0 482.50 0 482.75 0 483.00 0 483.25 0 483.50 0 483.75 0 484.00 0 484.25 0 484.50 0 484.75 0 485.00 0 485.25 0 485.50 0 485.75 0 486.00 0 486.25 10 486.50 0 486.75 0 487.00 0 487.25 0 487.50 0 487.75 0 488.00 0 488.25 0 488.50 0 488.75 0 489.00 0 489.25 0 489.50 0 489.75 0 490.00 0 490.25 0 490.50 0 490.75 0 491.00 0 491.25 0 491.50 0 491.75 0 492.00 0 492.25 0 492.50 0 492.75 0 493.00 0 493.25 0 493.50 0 493.75 0 494.00 0 494.25 0 494.50 0 494.75 0 495.00 0 495.25 0 495.50 0 495.75 0 496.00 0 496.25 0 496.50 0 496.75 0 497.00 0 497.25 0 497.50 0 497.75 0 498.00 0 498.25 0 498.50 0 498.75 0 499.00 0 499.25 0 499.50 0 499.75 0 500.00 0 500.25 0 500.50 0 500.75 0 501.00 0 501.25 0 501.50 0 501.75 0 502.00 0 502.25 0 502.50 0 502.75 0 503.00 0 503.25 0 503.50 0 503.75 0 504.00 0 504.25 0 504.50 0 504.75 0 505.00 0 505.25 0 505.50 0 505.75 0 506.00 0 506.25 0 506.50 0 506.75 0 507.00 0 507.25 0 507.50 0 507.75 0 508.00 0 508.25 0 508.50 0 508.75 0 509.00 2 509.25 0 509.50 0 509.75 0 510.00 0 510.25 0 510.50 0 510.75 0 511.00 0 511.25 0 511.50 0 511.75 0 512.00 0 512.25 0 512.50 0 512.75 0 513.00 0 513.25 0 513.50 0 513.75 0 514.00 0 514.25 0 514.50 0 514.75 0 515.00 0 515.25 0 515.50 0 515.75 0 516.00 0 516.25 0 516.50 0 516.75 0 517.00 0 517.25 0 517.50 0 517.75 0 518.00 0 518.25 0 518.50 0 518.75 0 519.00 0 519.25 0 519.50 0 519.75 0 520.00 0 520.25 0 520.50 0 520.75 0 521.00 0 521.25 0 521.50 0 521.75 0 522.00 0 522.25 0 522.50 0 522.75 0 523.00 0 523.25 0 523.50 0 523.75 0 524.00 0 524.25 0 524.50 0 524.75 0 525.00 0 525.25 0 525.50 0 525.75 0 526.00 0 526.25 0 526.50 0 526.75 0 527.00 0 527.25 0 527.50 0 527.75 0 528.00 0 528.25 0 528.50 0 528.75 0 529.00 0 529.25 0 529.50 0 529.75 0 530.00 0 530.25 0 530.50 0 530.75 0 531.00 0 531.25 0 531.50 0 531.75 0 532.00 0 532.25 7 532.50 0 532.75 0 533.00 0 533.25 0 533.50 0 533.75 0 534.00 0 534.25 0 534.50 0 534.75 0 535.00 0 535.25 0 535.50 0 535.75 0 536.00 0 536.25 0 536.50 0 536.75 0 537.00 0 537.25 0 537.50 0 537.75 0 538.00 0 538.25 0 538.50 13 538.75 0 539.00 0 539.25 0 539.50 0 539.75 0 540.00 0 540.25 0 540.50 0 540.75 0 541.00 0 541.25 0 541.50 0 541.75 0 542.00 0 542.25 0 542.50 0 542.75 0 543.00 0 543.25 0 543.50 0 543.75 0 544.00 0 544.25 0 544.50 0 544.75 0 545.00 0 545.25 0 545.50 0 545.75 0 546.00 0 546.25 0 546.50 0 546.75 0 547.00 0 547.25 0 547.50 0 547.75 0 548.00 0 548.25 0 548.50 0 548.75 0 549.00 0 549.25 0 549.50 0 549.75 0 550.00 0 550.25 0 550.50 0 550.75 5 551.00 0 551.25 0 551.50 0 551.75 0 552.00 0 552.25 0 552.50 0 552.75 0 553.00 0 553.25 0 553.50 0 553.75 4 554.00 0 554.25 0 554.50 0 554.75 0 555.00 0 555.25 0 555.50 0 555.75 0 556.00 0 556.25 0 556.50 0 556.75 0 557.00 0 557.25 0 557.50 0 557.75 0 558.00 0 558.25 0 558.50 0 558.75 0 559.00 0 559.25 0 559.50 0 559.75 0 560.00 0 560.25 0 560.50 0 560.75 0 561.00 0 561.25 0 561.50 0 561.75 0 562.00 0 562.25 0 562.50 2 562.75 0 563.00 0 563.25 0 563.50 0 563.75 0 564.00 0 564.25 0 564.50 0 564.75 0 565.00 0 565.25 0 565.50 0 565.75 0 566.00 0 566.25 0 566.50 0 566.75 0 567.00 9 567.25 0 567.50 0 567.75 0 568.00 5 568.25 0 568.50 0 568.75 0 569.00 0 569.25 0 569.50 0 569.75 0 570.00 0 570.25 0 570.50 0 570.75 0 571.00 0 571.25 0 571.50 2 571.75 0 572.00 0 572.25 0 572.50 0 572.75 0 573.00 0 573.25 0 573.50 0 573.75 0 574.00 0 574.25 0 574.50 0 574.75 0 575.00 0 575.25 0 575.50 0 575.75 0 576.00 0 576.25 0 576.50 0 576.75 0 577.00 0 577.25 0 577.50 0 577.75 0 578.00 0 578.25 0 578.50 0 578.75 0 579.00 0 579.25 0 579.50 0 579.75 0 580.00 0 580.25 0 580.50 0 580.75 0 581.00 0 581.25 0 581.50 0 581.75 0 582.00 0 582.25 0 582.50 0 582.75 0 583.00 0 583.25 0 583.50 3 583.75 0 584.00 0 584.25 0 584.50 0 584.75 0 585.00 0 585.25 0 585.50 0 585.75 0 586.00 0 586.25 0 586.50 0 586.75 0 587.00 0 587.25 0 587.50 0 587.75 0 588.00 0 588.25 0 588.50 0 588.75 0 589.00 0 589.25 0 589.50 0 589.75 0 590.00 0 590.25 0 590.50 0 590.75 0 591.00 0 591.25 0 591.50 0 591.75 0 592.00 0 592.25 0 592.50 0 592.75 0 593.00 0 593.25 0 593.50 0 593.75 0 594.00 0 594.25 0 594.50 0 594.75 0 595.00 0 595.25 0 595.50 0 595.75 0 596.00 0 596.25 0 596.50 0 596.75 0 597.00 0 597.25 0 597.50 0 597.75 0 598.00 0 598.25 0 598.50 0 598.75 0 599.00 0 599.25 0 599.50 0 599.75 0 600.00 0 600.25 0 600.50 0 600.75 0 601.00 0 601.25 0 601.50 0 601.75 0 602.00 0 602.25 0 602.50 0 602.75 0 603.00 0 603.25 0 603.50 0 603.75 0 604.00 0 604.25 0 604.50 0 604.75 0 605.00 0 605.25 0 605.50 0 605.75 0 606.00 0 606.25 0 606.50 0 606.75 0 607.00 0 607.25 0 607.50 0 607.75 0 608.00 0 608.25 0 608.50 0 608.75 0 609.00 0 609.25 0 609.50 0 609.75 0 610.00 0 610.25 0 610.50 0 610.75 0 611.00 0 611.25 0 611.50 0 611.75 0 612.00 8 612.25 0 612.50 0 612.75 0 613.00 0 613.25 0 613.50 0 613.75 0 614.00 0 614.25 0 614.50 0 614.75 0 615.00 0 615.25 0 615.50 0 615.75 0 616.00 0 616.25 0 616.50 0 616.75 0 617.00 0 617.25 0 617.50 0 617.75 0 618.00 0 618.25 0 618.50 0 618.75 0 619.00 0 619.25 0 619.50 0 619.75 0 620.00 0