CAS 70989-04-7: (+)-Mephenytoin
Formula:C12H14N2O2
InChI:InChI=1S/C12H14N2O2/c1-3-12(9-7-5-4-6-8-9)10(15)14(2)11(16)13-12/h4-8H,3H2,1-2H3,(H,13,16)/t12-/m0/s1
InChI key:InChIKey=GMHKMTDVRCWUDX-LBPRGKRZSA-N
SMILES:O=C1NC(C=2C=CC=CC2)(C(=O)N1C)CC
- Synonyms:
- (+)-5-Ethyl-3-methyl-5-phenylhydantoin
- (+)-Mephenytoin
- (+)-Mesantoin
- (5S)-5-Ethyl-3-methyl-5-phenyl-2,4-imidazolidinedione
- (5S)-5-ethyl-3-methyl-5-phenylimidazolidine-2,4-dione
- (S)-5-Ethyl-3-methyl-5-phenylhydantoin=(S)-Mephenytoin
- (S)-5-Ethyl-3-methyl-5-phenylimidazolidine-2,4-dione
- 2,4-Imidazolidinedione, 5-ethyl-3-methyl-5-phenyl-, (5S)-
- 2,4-Imidazolidinedione, 5-ethyl-3-methyl-5-phenyl-, (S)-
- d-Mephenytoin
- See more synonyms
- (S)-Mephenytoin

(S)-Mephenytoin
CAS:70989-04-7
Formula:
C12H14N2O2
Purity:
98%
Color and Shape:
Solid
Molecular weight:
218.2518
Ref: IN-DA0061JQ
5mg | 108.00 € | ||
10mg | 148.00 € | ||
25mg | 209.00 € | ||
50mg | 352.00 € | ||
100mg | 565.00 € | ||
250mg | To inquire |
Estimated delivery in United States, on Thursday 17 Apr 2025

(S)-Mephenytoin
CAS:70989-04-7
Formula:
C12H14N2O2
Color and Shape:
White To Off-White Solid
Molecular weight:
218.26
Ref: 4Z-M-045
5mg | To inquire | ||
10mg | To inquire | ||
25mg | To inquire | ||
50mg | To inquire | ||
100mg | To inquire |
Estimated delivery in United States, on Monday 21 Apr 2025

(S)-(+)-Mephenytoin
CAS:70989-04-7
Formula:
C12H14N2O2
Purity:
≥ 98.0%
Color and Shape:
White to off-white solid
Molecular weight:
218.25
Ref: 7W-GL8711
Undefined size | To inquire |
Estimated delivery in United States, on Monday 21 Apr 2025

(S)-5-Ethyl-3-Methyl-5-Phenylimidazolidine-2,4-Dione
CAS:70989-04-7
Purity:
99%
Molecular weight:
218.25g/mol
Ref: 54-OR1024086
1g | 3,152.00 € | ||
100mg | 641.00 € | ||
250mg | 1,070.00 € |
Estimated delivery in United States, on Monday 21 Apr 2025

Ref: 54-BUP07237
25mg | 562.00 € | ||
50mg | 825.00 € | ||
100mg | 1,177.00 € | ||
500mg | 2,040.00 € |
Estimated delivery in United States, on Monday 21 Apr 2025

(S)-Mephenytoin
CAS:70989-04-7
(S)-Mephenytoin: (+)-enantiomer, anticonvulsant, CYP2C19 substrate for analyzing CYP450 metabolism.
Formula:
C12H14N2O2
Purity:
99.05% - 99.82%
Color and Shape:
Solid
Molecular weight:
218.25
Ref: TM-T21529
1mg | 56.00 € | ||
5mg | 119.00 € | ||
10mg | 187.00 € | ||
25mg | 376.00 € | ||
50mg | 562.00 € | ||
100mg | 802.00 € | ||
1mL*10mM (DMSO) | 131.00 € |
Estimated delivery in United States, on Thursday 24 Apr 2025

(S)-Mephenytoin
CAS:70989-04-7
Applications An anticonvulsant agent. References Shimada, et al.: Anal. Biochem., 147, 174 (1975), Dzhagatspanyan. IA., …
Formula:
C12H14N2O2
Color and Shape:
Off-White
Molecular weight:
218.25
Ref: TR-M225000
10mg | 269.00 € | ||
50mg | 1,115.00 € | ||
100mg | 1,960.00 € |
Estimated delivery in United States, on Tuesday 29 Apr 2025

(S)-Mephenytoin - Bio-X ™
CAS:70989-04-7
(S)-Mephenytoin is a substrate of cytochrome P450 enzyme CYP2C19 (a hydroxylase). It is an effective …
Formula:
C12H14N2O2
Purity:
Min. 97 Area-%
Color and Shape:
White Powder
Molecular weight:
218.25 g/mol
Ref: 3D-FM25065
1mg | 167.00 € |
Estimated delivery in United States, on Monday 28 Apr 2025

(S)-(+)-Mephenytoin
CAS:70989-04-7
(S)-(+)-Mephenytoin is a substrate of cytochrome P450 enzyme CYP2C19 (a hydroxylase). It is an effective …
Formula:
C12H14N2O2
Purity:
Min. 97 Area-%
Color and Shape:
Powder
Molecular weight:
218.25 g/mol
Ref: 3D-FM64908
2mg | Discontinued | Request information | |
5mg | Discontinued | Request information | |
10mg | Discontinued | Request information | |
25mg | Discontinued | Request information | |
50mg | Discontinued | Request information |