2-Amino-5-methyl-3-thiophenecarbonitrile
- CAS No.
- 138564-58-6
- Chemical Name:
- 2-Amino-5-methyl-3-thiophenecarbonitrile
- Synonyms
- 2-AMINO-5-METHYLTHIOPHENE-3-CARBONITRILE;2-Amino-5-m;AKOS MSC-0403;TIMTEC-BB SBB000075;2-Amino-5-methyl-3-t;Olanzapine Impurity 7;Olanzapine Impurity 1;Olanzapine Impurity 13;Olanzapine impurity SA;Olanzapine impurity BNB
- CBNumber:
- CB3254936
- Molecular Formula:
- C6H6N2S
- Molecular Weight:
- 138.19
- MDL Number:
- MFCD01626055
- MOL File:
- 138564-58-6.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| 2-Amino-5-methyl-3-thiophenecarbonitrile >98.0%(GC) | A2351 | 5g | $28 |
| 2-Amino-5-methyl-3-thiophenecarbonitrile >98.0%(GC) | A2351 | 25g | $91 |
| 2-Amino-5-methyl-3-thiophenecarbonitrile | 259370 | 1g | $446 |
| 2-Amino-5-methyl-3-thiophenecarbonitrile | 259370 | 2g | $679 |
| 2-Amino-5-methyl-3-thiophenecarbonitrile | 259370 | 5g | $1044 |
| More product size | |||
| Melting point | 101-103°C |
|---|---|
| Boiling point | 318.5±42.0 °C(Predicted) |
| Density | 1.26±0.1 g/cm3(Predicted) |
| storage temp. | under inert gas (nitrogen or Argon) at 2–8 °C |
| solubility | soluble in Methanol |
| form | powder to crystal |
| pka | 0.16±0.10(Predicted) |
| color | Light yellow to Brown |
| InChI | InChI=1S/C6H6N2S/c1-4-2-5(3-7)6(8)9-4/h2H,8H2,1H3 |
| InChIKey | YGXADLPRHBRTPG-UHFFFAOYSA-N |
| SMILES | C1(N)SC(C)=CC=1C#N |
| CAS DataBase Reference | 138564-58-6(CAS DataBase Reference) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302+H312+H332-H315-H319 | |||||||||
| Precautionary statements | P261-P264-P270-P271-P280-P301+P312+P330-P302+P352+P312+P362+P364-P304+P340+P312-P305+P351+P338+P337+P313-P501 | |||||||||
| Hazard Codes | Xi,Xn | |||||||||
| Risk Statements | 20/21/22-22 | |||||||||
| Safety Statements | 22-36/37/39 | |||||||||
| RIDADR | 3276 | |||||||||
| HazardClass | IRRITANT | |||||||||
| HS Code | 29349990 | |||||||||
| REACH Registrations | Inactive | |||||||||
| NFPA 704 |
|
2-Amino-5-methyl-3-thiophenecarbonitrile price More Price(80)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| TCI Chemical | A2351 | 2-Amino-5-methyl-3-thiophenecarbonitrile >98.0%(GC) | 138564-58-6 | 5g | $28 | 2026-04-30 | Buy |
| TCI Chemical | A2351 | 2-Amino-5-methyl-3-thiophenecarbonitrile >98.0%(GC) | 138564-58-6 | 25g | $91 | 2026-04-30 | Buy |
| Usbiological | 259370 | 2-Amino-5-methyl-3-thiophenecarbonitrile | 138564-58-6 | 1g | $446 | 2026-06-03 | Buy |
| Usbiological | 259370 | 2-Amino-5-methyl-3-thiophenecarbonitrile | 138564-58-6 | 2g | $679 | 2026-06-03 | Buy |
| Usbiological | 259370 | 2-Amino-5-methyl-3-thiophenecarbonitrile | 138564-58-6 | 5g | $1044 | 2026-06-03 | Buy |
2-Amino-5-methyl-3-thiophenecarbonitrile Chemical Properties,Uses,Production
Uses
An Impurity generated in the preparation of Olanzapine (O253750).
Synthesis
123-38-6
109-77-3
138564-58-6
General procedure for the synthesis of 2-amino-3-cyano-5-methylthiophene from propionaldehyde and malononitrile: 0.070 g of 4-propylcyclohexanone (0.5 mmol), 0.030 g of malononitrile (0.5 mmol), 0.019 g of powdered sulphur (0.6 mmol), and 0.1 cm3 of NaOH (4 mol/dm3 aqueous solution) in a 1 cm3 choline chloride The mixture/urea was stirred at 60°C for 2-3 hours. The progress of the reaction was monitored by TLC and when the reaction was complete, 5 cm3 of water was added. The solid product was separated by filtration and recrystallized with ethanol if necessary to obtain the pure target compound.
References
[1] Monatshefte fur Chemie, 2017, vol. 148, # 4, p. 711 - 716
[2] Research on Chemical Intermediates, 2018, vol. 44, # 3, p. 2195 - 2213
[3] Patent: WO2008/50341, 2008, A2. Location in patent: Page/Page column 32; 33
[4] Bioorganic and Medicinal Chemistry Letters, 2013, vol. 23, # 7, p. 1953 - 1956
[5] Journal of Pharmaceutical Sciences, 2001, vol. 90, # 3, p. 371 - 388
2-Amino-5-methyl-3-thiophenecarbonitrile Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Capot Chemical Co.,Ltd. | +86-(0)57185586718 +86-13336195806 | sales@capot.com | China | 29640 | 60 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21587 | 55 |
| ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 | ivan@atkchemical.com | China | 33024 | 60 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29815 | 58 |
| Standardpharm Co. Ltd. | 86-714-3992388 | overseasales1@yongstandards.com | United States | 14332 | 58 |
| Alchem Pharmtech,Inc. | 8485655694 | sales@alchempharmtech.com | United States | 63687 | 58 |
| Wuhan Chemwish Technology Co., Ltd | 027-67849912 | sales@chemwish.com | CHINA | 10821 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49979 | 58 |
| Richest Group Ltd | 18017061086 | oled@richest-group.com | CHINA | 5600 | 58 |
| Neostar United (Changzhou) Industrial Co., Ltd. | +86-0519-85551759 +8613506123987 | marketing1@neostarunited.com | China | 8828 | 58 |
View Lastest Price from 2-Amino-5-methyl-3-thiophenecarbonitrile manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
![]() |
2026-04-22 | 2-Amino-5-methyl-3-thiophenecarbonitrile
138564-58-6
|
$29.00 | 99.33% | 10g | TargetMol Chemicals Inc. | ||
![]() |
2026-04-22 | 2-Amino-5-methyl-3-thiophenecarbonitrile
138564-58-6
|
$29.00 | 99.33% | 10g | TargetMol Chemicals Inc. | ||
![]() |
2025-11-18 | 2-Amino-5-methyl-3-thiophenecarbonitrile
138564-58-6
|
$1.10 | 1g | 99.00% | 100 Tons | Dideu Industries Group Limited |
-

- 2-Amino-5-methyl-3-thiophenecarbonitrile
138564-58-6
- $29.00
- 99.33%
- TargetMol Chemicals Inc.
-

- 2-Amino-5-methyl-3-thiophenecarbonitrile
138564-58-6
- $29.00
- 99.33%
- TargetMol Chemicals Inc.
-

- 2-Amino-5-methyl-3-thiophenecarbonitrile
138564-58-6
- $1.10
- 99.00%
- Dideu Industries Group Limited
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