Basic information
- CAS
2744-49-2- Standard SMILES
NS(=O)(=O)c1ccc(N2CCC(c3ccc(Cl)cc3)=N2)cc1- InChIKey
VZTHUHAJEZPWNC-UHFFFAOYSA-N- Molecular formula
- C15H14ClN3O2S
- Average molar mass
- 335.8 g/mol
- Monoisotopic mass
- 335.0495256
Names & identifiers
- Preferred name
- 4-(3-(4-chlorophenyl)-4,5-dihydro-1H-pyrazol-1-yl)benzenesulphonamide
- IUPAC
- 4-[5-(4-chlorophenyl)-3,4-dihydropyrazol-2-yl]benzenesulfonamide
- English name
- Fluorescent Brightener 121
- Molecular formula
- C15H14ClN3O2S
- Molecular weight
- 335.81
Names & synonyms
Fluorescent brightener 1212744-49-24-(3-(4-Chlorophenyl)-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonamideBELOFOR SNPA5J494GKT53EINECS 220-378-2CI FLUORESCENT BRIGHTENER 121Benzenesulfonamide, 4-(3-(4-chlorophenyl)-4,5-dihydro-1H-pyrazol-1-yl)-CI 50510CI FLUORESCENT BRIGHTENING AGENT 121DTXSID6062620Benzenesulfonamide, 4-[3-(4-chlorophenyl)-4,5-dihydro-1H-pyrazol-1-yl]-
Show more names
c.i. 50510BlankophorMan01Fluorescent Brightener 121 ISO 9001：2015 REACH4-[3-(4-Chlorphenyl)-4,5-dihydro-1H-pyrazol-1-yl]benzolsulfonamidBenzenesulfonamide, 4-3-(4-chlorophenyl)-4,5-dihydro-1H-pyrazol-1-yl-4-[3-(4-chlorophenyl)-4,5-dihydro-1H-pyrazol-1-yl]benzenesulphonamide4-[3-(4-Chlorophenyl)-4,5-dihydro-1H-pyrazole-1-yl]benzenesulfonamide4-[[3-(4-Chlorophenyl)-4,5-dihydro-1H-pyrazol]-1-yl]benzenesulfonamide
1-(p-sulfamoylphenyl)-3-(p-chlorophenyl)-2-pyrazoline3-(4-Chlorophenyl)-1-(4-sulfamoylphenyl)-2-pyrazoline4-(3-(4-Chlorophenyl)-4,5-dihydro-1H-pyrazol-1-yl)benzenesulphonamide4-[3-(4-chlorophenyl)-4,5-dihydro-1h-pyrazol-1-yl]benzenesulfonamideBENZENESULFONAMIDE, P-(3-(P-CHLOROPHENYL)-2-PYRAZOLIN-1-YL)-1-(P-SULFAMOYLPHENYL)-3-(P-CHLOROPHENYL)PYRAZOLINE1-(P-SULFAMYLPHENYL)-3-(P-CHLOROPHENYL)PYRAZOLINE3-(P-CHLOROPHENYL)-1-(P-SULFAMIDOPHENYL)-2-PYRAZOLINE
Properties
Computed structural properties
- XLogP
- 2.7
- Topological polar surface area
- 84.1 Ų
- Hydrogen bond donors
- 1
- Hydrogen bond acceptors
- 5
- Rotatable bonds
- 3
- Heavy atoms
- 22
- Formal charge
- 0
- Complexity
- 515
Physicochemical properties
- Melting point
- 218 · 218-219°C
- Boiling point
- 535.2 · 535.2±60.0 °C(Predicted)
- Density
- 1.45 · 1.45
- pka
- 10.39 · 10.39±0.10(Predicted)
- LogP
- 2.56 at · 2.56 at 30℃
- FDA UNII
- 5 J494GKT53 · 5J494GKT53
- EPA Substance Registry System
- 4 · Benzenesulfonamide, 4-[3-(4-chlorophenyl)-4,5-dihydro-1H-pyrazol-1-yl]- (2744-49-2)
- TSCA
- TSCA listed
- REACH Registrations
- Active
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
GHS classification
GHS Classification
This chemical does not meet GHS hazard criteria for 100% (45 of 45) of all reports.
Not Classified
Aggregated GHS information provided per 45 reports by companies from 1 notifications to the ECHA C&L Inventory.
Hazard information
Regulatory Information
Chemical: Benzenesulfonamide, 4-[3-(4-chlorophenyl)-4,5-dihydro-1H-pyrazol-1-yl]-
REACH registered substance: 4-[3-(4-chlorophenyl)-4,5-dihydro-1H-pyrazol-1-yl]benzenesulphonamide (EC: 220-378-2)
Benzenesulfonamide, 4-3-(4-chlorophenyl)-4,5-dihydro-1H-pyrazol-1-yl-: Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.
Hazard Classes and CategoriesNot Classified
Safety data
- tsca
- TSCA listed
- REACH Registrations
- Active
Chemistry & industry
Uses & manufacturing
General Manufacturing InformationBenzenesulfonamide, 4-[3-(4-chlorophenyl)-4,5-dihydro-1H-pyrazol-1-yl]-: ACTIVE
Suppliers9 total
HANGZHOU LEAP CHEM CO., LTD.+86-571-87711850 +86-15355479329 · [email protected]
杭州洁汉化工有限公司+86-571-86217390; +8618058761490 · [email protected]
海蔚化学86-21-51086038 · [email protected]
爆牛贸易重庆有限公司+86-023-6139-8061 +86-86-13650506873 · [email protected]
XIAMEN AMITY INDUSTRY AND TRADE CO., LTD.+8618950047208 · [email protected]
重庆卡兰医药有限公司[email protected]
HANGZHOU LEAP CHEM CO., LTD.+86-571-87711850 +8619957148339 · [email protected]
DAYANG CHEM (HANGZHOU) CO.,LTD+86-88938639 +86-17705817739 · [email protected]
Dideu Industries Group Limited+86-29-81148696 +86-15129568250 · [email protected]
Related reactions
0 records
No reaction records under the current filter.
Compound notes
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