Pigment Red 21

Modify Date: 2025-08-26 01:06:31

Pigment Red 21 Structure
Pigment Red 21 structure
Common Name Pigment Red 21
CAS Number 6410-26-0 Molecular Weight 401.84500
Density 1.31 Boiling Point 602.2ºC at 760 mmHg
Molecular Formula C23H16ClN3O2 Melting Point N/A
MSDS N/A Flash Point N/A

 Names

Name Pigment Red 21
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.31
Boiling Point 602.2ºC at 760 mmHg
Molecular Formula C23H16ClN3O2
Molecular Weight 401.84500
Exact Mass 401.09300
PSA 74.05000
LogP 6.93950
Index of Refraction 1.665
InChIKey XNANGTRPTFPPPE-UHFFFAOYSA-N
SMILES O=C(Nc1ccccc1)c1cc2ccccc2c(N=Nc2ccccc2Cl)c1O

 Safety Information

WGK Germany 3
HS Code 2927000090

 Precursor & DownStream

Precursor  1

DownStream  0

 Customs

HS Code 2927000090
Summary 2927000090 other diazo-, azo- or azoxy-compounds。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

 Synonyms

1-(2'-Chlorophenylazo)-2-hydroxy-3-naphthoanilid
4-(2-chloro-phenylazo)-3-hydroxy-[2]naphthoic acid anilide
Einecs 229-096-4
O-chloranilin->3-hydroxy-2-naphthanilid
Pigment Fast Scarlet 2R
NAPTHOL RED YR
Pigment Scarlet Powder
4-[(2-Chlorophenyl)azo]-3-hydroxy-N-phenylnaphthalene-2-carboxamide
3132 Fast Red 2R
4-(2-Chlor-phenylazo)-3-hydroxy-[2]naphthoesaeure-anilid
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