NextSDS Logo
Chemical Substance

4,4'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one]

CAS Number 3520-72-7
EC Number 222-530-3
Molecular Formula C32H24Cl2N8O2
SDS management

Is this substance in your SDS library?

NextSDS finds every safety data sheet that contains it, flags new hazard classifications and keeps your whole SDS library current for every site.

On 2 regulatory lists. Get alerted when that changes.

Book a demo See SDS management

Identifiers

Cas Number 3520-72-7 Primary
Ec Number 222-530-3
Chemical Name Pigment Orange 13
Chemical Name 4,4'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one]

Hazard Classifications

Not Classified
Warning
Hazard Code H208
Category
Source: REACH registration C&L

Regulatory Lists (2)

REACH ANNEX XVII — RESTRICTED SUBSTANCES
Substances restricted under Annex XVII of REACH (EC) No 1907/2006. Superset of the Annex XVII appendix lists: every substance in an appendix group is also a member here, plus the entries restricted outside the CMR appendices.
TRADE UNION PRIORITY LIST
Trade Union Priority List — Substances prioritised by European trade unions for workplace exposure reduction and substitution

Related Substances

4,4'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one]
6505-29-9
4,4'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[2,4-dihydro-5-methyl-2-(p-tolyl)-3H-pyrazol-3-one]
6883-91-6
4,4'-[(phenylmethylene)bis[(2-methyl-p-phenylene)azo]]bis[2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one]
66085-69-6
4,4'-[(1,1'-Biphenyl-4,4'-diyl)bis(azo)]bis(4,5-dihydro-5-oxo-1-phenyl-1H-pyrazole-3-carboxylic acid ethyl) ester
6492-54-2
3h-pyrazol-3-one,4,4'-[[(4-methoxyphenyl)methylene]bis[(2-methyl-4,1-phenylene)azo]]bis
72906-47-9

Disclaimer

The substance data provided is sourced from various third-party databases and regulatory sources. While we strive to maintain accuracy, we cannot guarantee the completeness, accuracy, or timeliness of this information. Users are responsible for verifying all data before use in compliance, safety, or regulatory contexts. NextSDS is not liable for any decisions made based on this data.