DIRECT RED 81

CAS No.
2610-11-9
CCD No.
CCD00003781
Formula
C29 H19 N5 O8 S2 . 2 Na
MolWeight
675.608

Basic Information

Product Name: DIRECT RED 81
CAS: 2610-11-9
English Synonyms: CI DIRECT RED 81 ; DISODIUM 7-BENZAMIDO-4-HYDROXY-3-[[4-[(4-SULPHONATOPHENYL)AZO]PHENYL]AZO]NAPHTHALENE-2-SULPHONATE ; CHLORANTINE FAST RED ; DURAZOL RED ; PONTAMINE FAST RED 8BLX ; DR 81 ; CALCODUR RED 8BL ; CHLORANTINE FAST RED 5B ; CHLOROANTINE FAST RED 5B ; PYRAZOL FAST RED 8BL ; SOLANTINE RED 8BL ; C.I.DIRECT RED 81 ; DIRECT RED 81 ; 2-NAPHTHALENESULFONIC ACID, 7-(BENZOYLAMINO)-4-HYDROXY-3-[[4-[(4-SULFOPHENYL)AZO]PHENYL]AZO]-, DISODIUM SALT
MDL Number.: MFCD00003949
H bond acceptor: 13
H bond donor: 2
Smile: c1ccc(cc1)C(=O)Nc2ccc3c(c2)cc(c(c3O)/N=N/c4ccc(cc4)/N=N/c5ccc(cc5)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+]
InChi: InChI=1S/C29H21N5O8S2.2Na/c35-28-25-15-12-23(30-29(36)18-4-2-1-3-5-18)16-19(25)17-26(44(40,41)42)27(28)34-33-21-8-6-20(7-9-21)31-32-22-10-13-24(14-11-22)43(37,38)39;;/h1-17,35H,(H,30,36)(H,37,38,39)(H,40,41,42);;/q;2*+1/p-2/b32-31+,34-33+;;
InChiKey: InChIKey=UFUQRRYHIHJMPB-DUCFOALUSA-L

Property

Melting Point: 240 DEG C (DEC)(LIT)
Comments: COMPOSITION: DYE CONTENT, 50%
RTECS: QK1370000
UNSPSC: 12171500
UV ABSORPTION: LAMBDAMAX 397 NM
UV ABSORPTION: LAMBDAMAX 508 NM (2ND)
WGK: 3

Safety information

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