Benzene and substituted derivatives
Filtered Search Results
4-tert-Butylbenzoic acid, 99%
CAS: 98-73-7 Molecular Formula: C11H14O2 Molecular Weight (g/mol): 178.23 MDL Number: MFCD00002563 InChI Key: KDVYCTOWXSLNNI-UHFFFAOYSA-N Synonym: 4-tert-butyl benzoic acid,tbba,p-tert-butylbenzoic acid,benzoic acid, 4-1,1-dimethylethyl,4-t-butylbenzoic acid,benzoic acid, p-tert-butyl,4-tert-butyl-benzoic acid,p-t-butylbenzoic acid,4-tert-butylbenzoicacid,unii-43z7t3vn0r PubChem CID: 7403 ChEBI: CHEBI:34443 IUPAC Name: 4-tert-butylbenzoic acid SMILES: CC(C)(C)C1=CC=C(C=C1)C(O)=O
| PubChem CID | 7403 |
|---|---|
| CAS | 98-73-7 |
| Molecular Weight (g/mol) | 178.23 |
| ChEBI | CHEBI:34443 |
| MDL Number | MFCD00002563 |
| SMILES | CC(C)(C)C1=CC=C(C=C1)C(O)=O |
| Synonym | 4-tert-butyl benzoic acid,tbba,p-tert-butylbenzoic acid,benzoic acid, 4-1,1-dimethylethyl,4-t-butylbenzoic acid,benzoic acid, p-tert-butyl,4-tert-butyl-benzoic acid,p-t-butylbenzoic acid,4-tert-butylbenzoicacid,unii-43z7t3vn0r |
| IUPAC Name | 4-tert-butylbenzoic acid |
| InChI Key | KDVYCTOWXSLNNI-UHFFFAOYSA-N |
| Molecular Formula | C11H14O2 |
4-tert-Butylphenylacetylene, 96%
CAS: 772-38-3 Molecular Formula: C12H14 Molecular Weight (g/mol): 158.24 MDL Number: MFCD00190197 InChI Key: ZSYQVVKVKBVHIL-UHFFFAOYSA-N Synonym: 1-tert-butyl-4-ethynylbenzene,4-tert-butyl phenylacetylene,4-tert-butylphenylacetylene,benzene, 1-1,1-dimethylethyl-4-ethynyl,acmc-20amtx,4-t-butylphenylacetylene,4-tert-butylphenyl ethyne,4-tert.butylphenylacetylen,4-tert-butyl phenylethyne,4-tert-butylphenyl acetylene PubChem CID: 2757302 IUPAC Name: 1-tert-butyl-4-ethynylbenzene SMILES: CC(C)(C)C1=CC=C(C=C1)C#C
| PubChem CID | 2757302 |
|---|---|
| CAS | 772-38-3 |
| Molecular Weight (g/mol) | 158.24 |
| MDL Number | MFCD00190197 |
| SMILES | CC(C)(C)C1=CC=C(C=C1)C#C |
| Synonym | 1-tert-butyl-4-ethynylbenzene,4-tert-butyl phenylacetylene,4-tert-butylphenylacetylene,benzene, 1-1,1-dimethylethyl-4-ethynyl,acmc-20amtx,4-t-butylphenylacetylene,4-tert-butylphenyl ethyne,4-tert.butylphenylacetylen,4-tert-butyl phenylethyne,4-tert-butylphenyl acetylene |
| IUPAC Name | 1-tert-butyl-4-ethynylbenzene |
| InChI Key | ZSYQVVKVKBVHIL-UHFFFAOYSA-N |
| Molecular Formula | C12H14 |
3-tert-Butylphenol, 99+%
CAS: 585-34-2 Molecular Formula: C10H14O Molecular Weight (g/mol): 150.22 MDL Number: MFCD00002300 InChI Key: CYEKUDPFXBLGHH-UHFFFAOYSA-N Synonym: m-tert-butylphenol,phenol, 3-1,1-dimethylethyl,3-t-butylphenol,3-tert-butyl phenol,phenol, m-tert-butyl,3-tert-butyl-phenol,3-tertbutylphenol,3-tert.butylphenol,m-tert.-butylphenol PubChem CID: 11450 ChEBI: CHEBI:34348 IUPAC Name: 3-tert-butylphenol SMILES: CC(C)(C)C1=CC=CC(O)=C1
| PubChem CID | 11450 |
|---|---|
| CAS | 585-34-2 |
| Molecular Weight (g/mol) | 150.22 |
| ChEBI | CHEBI:34348 |
| MDL Number | MFCD00002300 |
| SMILES | CC(C)(C)C1=CC=CC(O)=C1 |
| Synonym | m-tert-butylphenol,phenol, 3-1,1-dimethylethyl,3-t-butylphenol,3-tert-butyl phenol,phenol, m-tert-butyl,3-tert-butyl-phenol,3-tertbutylphenol,3-tert.butylphenol,m-tert.-butylphenol |
| IUPAC Name | 3-tert-butylphenol |
| InChI Key | CYEKUDPFXBLGHH-UHFFFAOYSA-N |
| Molecular Formula | C10H14O |
4-(tert-Butyl)-2-chloroaniline, 95%, Thermo Scientific™
CAS: 42265-67-8 Molecular Formula: C10H14ClN Molecular Weight (g/mol): 183.68 MDL Number: MFCD00052272 InChI Key: MFEZEFHCSBXPPO-UHFFFAOYSA-N Synonym: 4-tert-butyl-2-chloroaniline,4-t-butyl-2-chloroaniline,2-chloro-4-tert-butylaniline,4-tert-butyl-2-chloro-aniline,aniline, 4-tert-butyl-2-chloro,4-tert-butyl-2-chlorophenylamine,benzenamine,2-chloro-4-1,1-dimethylethyl PubChem CID: 521094 IUPAC Name: 4-tert-butyl-2-chloroaniline SMILES: CC(C)(C)C1=CC(Cl)=C(N)C=C1
| PubChem CID | 521094 |
|---|---|
| CAS | 42265-67-8 |
| Molecular Weight (g/mol) | 183.68 |
| MDL Number | MFCD00052272 |
| SMILES | CC(C)(C)C1=CC(Cl)=C(N)C=C1 |
| Synonym | 4-tert-butyl-2-chloroaniline,4-t-butyl-2-chloroaniline,2-chloro-4-tert-butylaniline,4-tert-butyl-2-chloro-aniline,aniline, 4-tert-butyl-2-chloro,4-tert-butyl-2-chlorophenylamine,benzenamine,2-chloro-4-1,1-dimethylethyl |
| IUPAC Name | 4-tert-butyl-2-chloroaniline |
| InChI Key | MFEZEFHCSBXPPO-UHFFFAOYSA-N |
| Molecular Formula | C10H14ClN |
1-Bromo-4-tert-butylbenzene, 97%
CAS: 3972-65-4 Molecular Formula: C10H13Br Molecular Weight (g/mol): 213.12 MDL Number: MFCD00000108 InChI Key: XHCAGOVGSDHHNP-UHFFFAOYSA-N Synonym: 4-tert-butylbromobenzene,1-bromo-4-tert-butyl benzene,butylbromobenzene,p-bromo-tert-butylbenzene,1-bromo-4-t-butylbenzene,1-bromo-4-1,1-dimethylethyl benzene,4-tert-butyl-1-bromobenzene,p-bromo-t-butylbenzene,1-bromo-p-t-butylbenzene,4-bromo-tert-butylbenzene PubChem CID: 77595 IUPAC Name: 1-bromo-4-tert-butylbenzene SMILES: CC(C)(C)C1=CC=C(C=C1)Br
| PubChem CID | 77595 |
|---|---|
| CAS | 3972-65-4 |
| Molecular Weight (g/mol) | 213.12 |
| MDL Number | MFCD00000108 |
| SMILES | CC(C)(C)C1=CC=C(C=C1)Br |
| Synonym | 4-tert-butylbromobenzene,1-bromo-4-tert-butyl benzene,butylbromobenzene,p-bromo-tert-butylbenzene,1-bromo-4-t-butylbenzene,1-bromo-4-1,1-dimethylethyl benzene,4-tert-butyl-1-bromobenzene,p-bromo-t-butylbenzene,1-bromo-p-t-butylbenzene,4-bromo-tert-butylbenzene |
| IUPAC Name | 1-bromo-4-tert-butylbenzene |
| InChI Key | XHCAGOVGSDHHNP-UHFFFAOYSA-N |
| Molecular Formula | C10H13Br |
2-Methyl-1-phenyl-2-propanol, 98+%
CAS: 100-86-7 Molecular Formula: C10H14O Molecular Weight (g/mol): 150.221 MDL Number: MFCD00004465 InChI Key: RIWRBSMFKVOJMN-UHFFFAOYSA-N Synonym: 2-methyl-1-phenyl-2-propanol,benzyldimethylcarbinol,2-benzyl-2-propanol,phenyl-tert-butanol,dimethylbenzylcarbinol,dmbc,1,1-dimethylphenylethanol,1,1-dimethyl-2-phenylethanol,benzylpropyl alcohol,dimethyl benzyl carbinol PubChem CID: 7531 IUPAC Name: 2-methyl-1-phenylpropan-2-ol SMILES: CC(C)(CC1=CC=CC=C1)O
| PubChem CID | 7531 |
|---|---|
| CAS | 100-86-7 |
| Molecular Weight (g/mol) | 150.221 |
| MDL Number | MFCD00004465 |
| SMILES | CC(C)(CC1=CC=CC=C1)O |
| Synonym | 2-methyl-1-phenyl-2-propanol,benzyldimethylcarbinol,2-benzyl-2-propanol,phenyl-tert-butanol,dimethylbenzylcarbinol,dmbc,1,1-dimethylphenylethanol,1,1-dimethyl-2-phenylethanol,benzylpropyl alcohol,dimethyl benzyl carbinol |
| IUPAC Name | 2-methyl-1-phenylpropan-2-ol |
| InChI Key | RIWRBSMFKVOJMN-UHFFFAOYSA-N |
| Molecular Formula | C10H14O |
Methyl 4-tert-butylbenzoate, 99%, Thermo Scientific™
CAS: 26537-19-9 Molecular Formula: C12H16O2 Molecular Weight (g/mol): 192.26 MDL Number: MFCD00008835 InChI Key: UPIJOAFHOIWPLT-UHFFFAOYSA-N Synonym: methyl 4-tert-butyl benzoate,methyl p-tert-butylbenzoate,4-tert-butylbenzoic acid methyl ester,unii-8vk4o27jmt,benzoic acid, 4-1,1-dimethylethyl-, methyl ester,methyl 4-t-butylbenzoate,8vk4o27jmt,methyl4-tert-butylbenzoate,methyl p-t-butylbenzoate,benzoic acid, p-tert-butyl-, methyl ester PubChem CID: 97433 IUPAC Name: methyl 4-tert-butylbenzoate SMILES: CC(C)(C)C1=CC=C(C=C1)C(=O)OC
| PubChem CID | 97433 |
|---|---|
| CAS | 26537-19-9 |
| Molecular Weight (g/mol) | 192.26 |
| MDL Number | MFCD00008835 |
| SMILES | CC(C)(C)C1=CC=C(C=C1)C(=O)OC |
| Synonym | methyl 4-tert-butyl benzoate,methyl p-tert-butylbenzoate,4-tert-butylbenzoic acid methyl ester,unii-8vk4o27jmt,benzoic acid, 4-1,1-dimethylethyl-, methyl ester,methyl 4-t-butylbenzoate,8vk4o27jmt,methyl4-tert-butylbenzoate,methyl p-t-butylbenzoate,benzoic acid, p-tert-butyl-, methyl ester |
| IUPAC Name | methyl 4-tert-butylbenzoate |
| InChI Key | UPIJOAFHOIWPLT-UHFFFAOYSA-N |
| Molecular Formula | C12H16O2 |
2-Methyl-1-phenyl-2-propen-1-ol, tech. 85%
CAS: 4383-08-8 Molecular Formula: C10H12O Molecular Weight (g/mol): 148.21 MDL Number: MFCD00046630 InChI Key: ZGYBYYJGIKPBFD-UHFFFAOYNA-N Synonym: 2-methyl-1-phenyl-2-propen-1-ol,acmc-1bn9z,alpha-isopropenylbenzenemethanol,1-phenyl-2-methyl-2-propen-1-ol,2,6-dichloro-9-methyl-10h-purine PubChem CID: 138211 IUPAC Name: 2-methyl-1-phenylprop-2-en-1-ol SMILES: CC(=C)C(C1=CC=CC=C1)O
| PubChem CID | 138211 |
|---|---|
| CAS | 4383-08-8 |
| Molecular Weight (g/mol) | 148.21 |
| MDL Number | MFCD00046630 |
| SMILES | CC(=C)C(C1=CC=CC=C1)O |
| Synonym | 2-methyl-1-phenyl-2-propen-1-ol,acmc-1bn9z,alpha-isopropenylbenzenemethanol,1-phenyl-2-methyl-2-propen-1-ol,2,6-dichloro-9-methyl-10h-purine |
| IUPAC Name | 2-methyl-1-phenylprop-2-en-1-ol |
| InChI Key | ZGYBYYJGIKPBFD-UHFFFAOYNA-N |
| Molecular Formula | C10H12O |
1-Phenyl-1,2-propanedione, 98%
CAS: 579-07-7 Molecular Formula: C9H8O2 Molecular Weight (g/mol): 148.16 MDL Number: MFCD00008755 InChI Key: BVQVLAIMHVDZEL-UHFFFAOYSA-N Synonym: 1-phenyl-1,2-propanedione,acetylbenzoyl,acetyl benzoyl,benzoylacetyl,methylphenylglyoxal,pyruvophenone,1,2-propanedione, 1-phenyl,phenylmethyldiketone,benzoyl methyl ketone,methyl phenyl diketone PubChem CID: 11363 ChEBI: CHEBI:63552 IUPAC Name: 1-phenylpropane-1,2-dione SMILES: CC(=O)C(=O)C1=CC=CC=C1
| PubChem CID | 11363 |
|---|---|
| CAS | 579-07-7 |
| Molecular Weight (g/mol) | 148.16 |
| ChEBI | CHEBI:63552 |
| MDL Number | MFCD00008755 |
| SMILES | CC(=O)C(=O)C1=CC=CC=C1 |
| Synonym | 1-phenyl-1,2-propanedione,acetylbenzoyl,acetyl benzoyl,benzoylacetyl,methylphenylglyoxal,pyruvophenone,1,2-propanedione, 1-phenyl,phenylmethyldiketone,benzoyl methyl ketone,methyl phenyl diketone |
| IUPAC Name | 1-phenylpropane-1,2-dione |
| InChI Key | BVQVLAIMHVDZEL-UHFFFAOYSA-N |
| Molecular Formula | C9H8O2 |
2-Fluorophenylacetone, 98%
CAS: 2836-82-0 Molecular Formula: C9H9FO Molecular Weight (g/mol): 152.168 MDL Number: MFCD00000325 InChI Key: BANVZEUCJHUPOI-UHFFFAOYSA-N Synonym: 2-fluorophenylacetone,1-2-fluorophenyl propan-2-one,1-2-fluorophenyl acetone,2-fluorophenyl acetone,o-fluorophenylacetone,2-propanone, 1-2-fluorophenyl,acmc-20anub,ksc497e4p,1-2-fluorophenyl acetone # PubChem CID: 76086 IUPAC Name: 1-(2-fluorophenyl)propan-2-one SMILES: CC(=O)CC1=CC=CC=C1F
| PubChem CID | 76086 |
|---|---|
| CAS | 2836-82-0 |
| Molecular Weight (g/mol) | 152.168 |
| MDL Number | MFCD00000325 |
| SMILES | CC(=O)CC1=CC=CC=C1F |
| Synonym | 2-fluorophenylacetone,1-2-fluorophenyl propan-2-one,1-2-fluorophenyl acetone,2-fluorophenyl acetone,o-fluorophenylacetone,2-propanone, 1-2-fluorophenyl,acmc-20anub,ksc497e4p,1-2-fluorophenyl acetone # |
| IUPAC Name | 1-(2-fluorophenyl)propan-2-one |
| InChI Key | BANVZEUCJHUPOI-UHFFFAOYSA-N |
| Molecular Formula | C9H9FO |
alpha,alpha-Dimethylbenzylamine, 96%
CAS: 585-32-0 Molecular Formula: C9H13N Molecular Weight (g/mol): 135.21 MDL Number: MFCD00134680 InChI Key: KDFDOINBXBEOLZ-UHFFFAOYSA-N Synonym: cumylamine,alpha,alpha-dimethylbenzylamine,1-methyl-1-phenyl-ethylamine,1-methyl-1-phenylethylamine,2-phenyl-2-propanamine,alpha-aminoisopropylbenzene,benzenemethanamine, alpha,alpha-dimethyl,dimethyl-aminophenylmethane,cumyl amine,phenisopropyl amine PubChem CID: 68509 IUPAC Name: 2-phenylpropan-2-amine SMILES: CC(C)(N)C1=CC=CC=C1
| PubChem CID | 68509 |
|---|---|
| CAS | 585-32-0 |
| Molecular Weight (g/mol) | 135.21 |
| MDL Number | MFCD00134680 |
| SMILES | CC(C)(N)C1=CC=CC=C1 |
| Synonym | cumylamine,alpha,alpha-dimethylbenzylamine,1-methyl-1-phenyl-ethylamine,1-methyl-1-phenylethylamine,2-phenyl-2-propanamine,alpha-aminoisopropylbenzene,benzenemethanamine, alpha,alpha-dimethyl,dimethyl-aminophenylmethane,cumyl amine,phenisopropyl amine |
| IUPAC Name | 2-phenylpropan-2-amine |
| InChI Key | KDFDOINBXBEOLZ-UHFFFAOYSA-N |
| Molecular Formula | C9H13N |
4-tert-Butylphenyl glycidyl ether, 95%
CAS: 3101-60-8 Molecular Formula: C13H18O2 Molecular Weight (g/mol): 206.285 MDL Number: MFCD00005136 InChI Key: HHRACYLRBOUBKM-UHFFFAOYSA-N Synonym: p-tert-butylphenyl glycidyl ether,4-tert-butylphenyl glycidyl ether,4-t-butylphenyl glycidyl ether,2-4-tert-butylphenoxy methyl oxirane,tert-butylphenol glycidyl ether,tert-butylphenyl glycidyl ether,t-butyl phenyl glycidyl ether,ccris 2638,oxirane, 4-1,1-dimethylethyl phenoxy methyl,2-4-tert-butyl phenoxy methyl oxirane PubChem CID: 18360 IUPAC Name: 2-[(4-tert-butylphenoxy)methyl]oxirane SMILES: CC(C)(C)C1=CC=C(C=C1)OCC2CO2
| PubChem CID | 18360 |
|---|---|
| CAS | 3101-60-8 |
| Molecular Weight (g/mol) | 206.285 |
| MDL Number | MFCD00005136 |
| SMILES | CC(C)(C)C1=CC=C(C=C1)OCC2CO2 |
| Synonym | p-tert-butylphenyl glycidyl ether,4-tert-butylphenyl glycidyl ether,4-t-butylphenyl glycidyl ether,2-4-tert-butylphenoxy methyl oxirane,tert-butylphenol glycidyl ether,tert-butylphenyl glycidyl ether,t-butyl phenyl glycidyl ether,ccris 2638,oxirane, 4-1,1-dimethylethyl phenoxy methyl,2-4-tert-butyl phenoxy methyl oxirane |
| IUPAC Name | 2-[(4-tert-butylphenoxy)methyl]oxirane |
| InChI Key | HHRACYLRBOUBKM-UHFFFAOYSA-N |
| Molecular Formula | C13H18O2 |
2,4-Di-tert-butylphenol, 97%
CAS: 96-76-4 MDL Number: MFCD00008828 InChI Key: ICKWICRCANNIBI-UHFFFAOYSA-N Synonym: 2,4-di-tert-butylphenol,2,4-di-t-butylphenol,phenol, 2,4-bis 1,1-dimethylethyl,antioxidant no. 33,1-hydroxy-2,4-di-tert-butylbenzene,phenol, 2,4-di-tert-butyl,2,4-bis tert-butyl phenol,prodox 146,prodox 146a-85x,unii-fob94g6hzt PubChem CID: 7311 IUPAC Name: 2,4-ditert-butylphenol SMILES: CC(C)(C)C1=CC(=C(C=C1)O)C(C)(C)C
| PubChem CID | 7311 |
|---|---|
| CAS | 96-76-4 |
| MDL Number | MFCD00008828 |
| SMILES | CC(C)(C)C1=CC(=C(C=C1)O)C(C)(C)C |
| Synonym | 2,4-di-tert-butylphenol,2,4-di-t-butylphenol,phenol, 2,4-bis 1,1-dimethylethyl,antioxidant no. 33,1-hydroxy-2,4-di-tert-butylbenzene,phenol, 2,4-di-tert-butyl,2,4-bis tert-butyl phenol,prodox 146,prodox 146a-85x,unii-fob94g6hzt |
| IUPAC Name | 2,4-ditert-butylphenol |
| InChI Key | ICKWICRCANNIBI-UHFFFAOYSA-N |
Thermo Scientific Chemicals Xylometazoline hydrochloride, 99%
CAS: 1218-35-5 Molecular Formula: C16H24N2·HCL Molecular Weight (g/mol): 280.84 InChI Key: YGWFCQYETHJKNX-UHFFFAOYSA-N Synonym: xylometazoline hydrochloride,xylometazoline hcl,2-4-tert-butyl-2,6-dimethylbenzyl-2-imidazoline hydrochloride,unii-x5s84033nz,dsstox_cid_25223,dsstox_rid_80760,dsstox_gsid_45223,2-4-tert-butyl-2,6-dimethyl-phenyl methyl-4,5-dihydro-1h-imidazole hydrochloride,2-4-tert-butyl-2,6-dimethylphenyl methyl-4,5-dihydro-1h-imidazole hydrochloride PubChem CID: 5282386 IUPAC Name: 2-[(4-tert-butyl-2,6-dimethylphenyl)methyl]-4,5-dihydro-1H-imidazole;hydrochloride SMILES: CC1=CC(=CC(=C1CC2=NCCN2)C)C(C)(C)C.Cl
| PubChem CID | 5282386 |
|---|---|
| CAS | 1218-35-5 |
| Molecular Weight (g/mol) | 280.84 |
| SMILES | CC1=CC(=CC(=C1CC2=NCCN2)C)C(C)(C)C.Cl |
| Synonym | xylometazoline hydrochloride,xylometazoline hcl,2-4-tert-butyl-2,6-dimethylbenzyl-2-imidazoline hydrochloride,unii-x5s84033nz,dsstox_cid_25223,dsstox_rid_80760,dsstox_gsid_45223,2-4-tert-butyl-2,6-dimethyl-phenyl methyl-4,5-dihydro-1h-imidazole hydrochloride,2-4-tert-butyl-2,6-dimethylphenyl methyl-4,5-dihydro-1h-imidazole hydrochloride |
| IUPAC Name | 2-[(4-tert-butyl-2,6-dimethylphenyl)methyl]-4,5-dihydro-1H-imidazole;hydrochloride |
| InChI Key | YGWFCQYETHJKNX-UHFFFAOYSA-N |
| Molecular Formula | C16H24N2·HCL |
Probucol, MP Biomedicals™
CAS: 23288-49-5 Molecular Formula: C31H48O2S2 Molecular Weight (g/mol): 516.843 InChI Key: FYPMFJGVHOHGLL-UHFFFAOYSA-N Synonym: probucol,lorelco,biphenabid,bisphenabid,lurselle,bisbid,lesterol,lursell,panavir,probucolum PubChem CID: 4912 ChEBI: CHEBI:8427 IUPAC Name: 2,6-ditert-butyl-4-[2-(3,5-ditert-butyl-4-hydroxyphenyl)sulfanylpropan-2-ylsulfanyl]phenol SMILES: CC(C)(C)C1=CC(=CC(=C1O)C(C)(C)C)SC(C)(C)SC2=CC(=C(C(=C2)C(C)(C)C)O)C(C)(C)C
| PubChem CID | 4912 |
|---|---|
| CAS | 23288-49-5 |
| Molecular Weight (g/mol) | 516.843 |
| ChEBI | CHEBI:8427 |
| SMILES | CC(C)(C)C1=CC(=CC(=C1O)C(C)(C)C)SC(C)(C)SC2=CC(=C(C(=C2)C(C)(C)C)O)C(C)(C)C |
| Synonym | probucol,lorelco,biphenabid,bisphenabid,lurselle,bisbid,lesterol,lursell,panavir,probucolum |
| IUPAC Name | 2,6-ditert-butyl-4-[2-(3,5-ditert-butyl-4-hydroxyphenyl)sulfanylpropan-2-ylsulfanyl]phenol |
| InChI Key | FYPMFJGVHOHGLL-UHFFFAOYSA-N |
| Molecular Formula | C31H48O2S2 |