FA10042 | L-Cystine (E-921, F.C.C.) F.A

CAS Number

56-89-3

Formula

C6H12N2O4S2

Weight

M: 240,30 EC: 200-296-3 NC: 2930 90 13

Specifications
Assay (as C6H12N2O4S2) calc. a.d.s 98,5-101,5%
Appearance p/t
Identity:
IR spectrum p/t.
Lead, not more than 5 ppm
Loss on drying, not more than 0,2 %
Residue on ignition, not more than 0,1 %
Spec.Rot. (after drying) [a]20/D c=2 (in HCl 1 mol/l) -215 to -225°

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