Nigrosine, C22H14N6Na2O9S2, CAS Number-8005-03-6, C.I. 50420, Acid Black 2, 100g, Black to Black-Red, Pure, HKBVRFLHNUEVRO-HMDKGIQMSA-L, Authentic, disodium;4-amino-3-[(4-nitrophenyl)diazenyl]-5-oxo-6-(phenylhydrazinylidene)naphthalene-2,7-
Nigrosine, C22H14N6Na2O9S2, CAS Number-8005-03-6, C.I. 50420, Acid Black 2, 100g, Black to Black-Red, Pure, HKBVRFLHNUEVRO-HMDKGIQMSA-L, Authentic, disodium;4-amino-3-[(4-nitrophenyl)diazenyl]-5-oxo-6-(phenylhydrazinylidene)naphthalene-2,7-
Nigrosine, C22H14N6Na2O9S2, CAS Number-8005-03-6, C.I. 50420, Acid Black 2, 500g, Black to Black-Red, Pure, HKBVRFLHNUEVRO-HMDKGIQMSA-L, Authentic, disodium;4-amino-3-[(4-nitrophenyl)diazenyl]-5-oxo-6-(phenylhydrazinylidene)naphthalene-2,7-
Saponin, CAS Number-74499-23-3, 100g, 2 max. at 520nm, (c-20, water) (1 cm cell) at 0nm, (c-20, water) (1 cm cell), Red to Tan, Authentic, 14, 8365, MFCD00081981, pract., Glass Bottle, 3.8 to 4.6 (20% soln.), Powder