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MilliporeSigma

Specification Sheet

Product Name
4,4′-Diazido-2,2′-stilbenedisulfonic acid disodium salt tetrahydrate ≥99.0%

Product Number
33483

Product Brand
SIAL

CAS Number
2718-90-3

Molecular Weight
538.42

Test

Specification

APPEARANCE (COLOR)White to Light Yellow and White to Light Brown
APPEARANCE (FORM)Powder
PURITY (HPLC AREA %)≥ 99.0 %
LOSS ON DRYING13.4 % tetrahydrate (theory)
CARBON CONTENT31.23% (Theory)
HYDROGEN CONTENT3.00% (Theory)
NITROGEN CONTENT15.61% (Theory)
INFRARED SPECTRUMCONFORMS TO STRUCTURE