5-Benzothiazolecarboxaldehyde,2-methyl-(8CI,9CI)
- Product Name
- 5-Benzothiazolecarboxaldehyde,2-methyl-(8CI,9CI)
- CAS No.
- 20061-46-5
- Chemical Name
- 5-Benzothiazolecarboxaldehyde,2-methyl-(8CI,9CI)
- Synonyms
- 2-Methyl-benzothiazole-5-carbaldehyde;2-Methyl-5-benzothiazolecarboxaldehyde;5-Benzothiazolecarboxaldehyde, 2-methyl-;2-Methyl-1,3-benzothiazole-5-carbaldehyde;5-Benzothiazolecarboxaldehyde,2-methyl-(8CI,9CI)
- CBNumber
- CB21275962
- Molecular Formula
- C9H7NOS
- Formula Weight
- 177.22
- MOL File
- 20061-46-5.mol
5-Benzothiazolecarboxaldehyde,2-methyl-(8CI,9CI) Property
- Melting point:
- 100.5 °C(Solv: ligroine (8032-32-4))
- Boiling point:
- 316.3±15.0 °C(Predicted)
- Density
- 1.320±0.06 g/cm3(Predicted)
- storage temp.
- under inert gas (nitrogen or Argon) at 2-8°C
- pka
- 0.72±0.10(Predicted)
- Appearance
- Light yellow to yellow Solid
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
- Precautionary statements
-
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P332+P313IF SKIN irritation occurs: Get medical advice/attention.
P337+P313IF eye irritation persists: Get medical advice/attention.
N-Bromosuccinimide Price
- Product number
- B488435
- Product name
- 2-methylbenzo[d]thiazole-5-carbaldehyde
- Packaging
- 100mg
- Price
- $155
- Updated
- 2021/12/16
- Product number
- 0310AB
- Product name
- 2-Methylbenzo[d]thiazole-5-carbaldehyde
- Packaging
- 1g
- Price
- $651
- Updated
- 2021/12/16
- Product number
- CHM0092591
- Product name
- 2-METHYLBENZO[D]THIAZOLE-5-CARBALDEHYDE
- Purity
- 95.00%
- Packaging
- 1G
- Price
- $1273.39
- Updated
- 2021/12/16
- Product number
- 0310AB
- Product name
- 2-Methylbenzo[d]thiazole-5-carbaldehyde
- Packaging
- 250mg
- Price
- $291
- Updated
- 2021/12/16
- Product number
- CM126812
- Product name
- 2-methylbenzo[d]thiazole-5-carbaldehyde
- Purity
- 97%
- Packaging
- 1g
- Price
- $371
- Updated
- 2021/12/16
5-Benzothiazolecarboxaldehyde,2-methyl-(8CI,9CI) Chemical Properties,Usage,Production
Synthesis
32770-97-1
20061-46-5
General procedure for the synthesis of 2-methyl-5-benzothiazolecarboxaldehyde from (2-methylbenzo[d]thiazol-5-yl)methanol: To a stirred solution of (2-methylbenzo[d]thiazol-5-yl)methanol (0.6 g, 3.35 mmol) in anhydrous dichloromethane (6 mL) was added sodium bicarbonate (1.12 g, 13.4 mmol), followed by Dess- Martin periodate (2.84 g, 6.70 mmol). The reaction mixture was stirred at room temperature for 2 hours. Upon completion of the reaction, the reaction mixture was diluted with dichloromethane (50 mL), washed sequentially with water (15 mL), 10% sodium bicarbonate solution (15 mL), and brine (15 mL), and dried over anhydrous sodium sulfate. After evaporation of the solvent, the target product 2-methyl-5-benzothiazolecarboxaldehyde was obtained. Yield: 99% (0.65 g, brown liquid). Product characterization data: 1H NMR (400 MHz, DMSO-d6): δ 10.12 (s, 1H), 8.25 (s, 1H), 7.80-7.79 (m, 2H), 2.86 (s, 3H). lcms (Method A): m/z 178.0 (M + H), retention time 2.84 min, purity 81.57% (maximum).
References
[1] Angewandte Chemie - International Edition, 2006, vol. 45, # 47, p. 7942 - 7948
[2] J. Gen. Chem. USSR (Engl. Transl.), 1964, vol. 34, p. 3852 - 3856
[3] Zhurnal Obshchei Khimii, 1964, vol. 34, p. 3801 - 3806
[4] Synthetic Communications, 2002, vol. 32, # 11, p. 1647 - 1652
[5] Patent: WO2016/30443, 2016, A1. Location in patent: Page/Page column 98
5-Benzothiazolecarboxaldehyde,2-methyl-(8CI,9CI) Preparation Products And Raw materials
Raw materials
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View Lastest Price from 5-Benzothiazolecarboxaldehyde,2-methyl-(8CI,9CI) manufacturers
- Product
- 5-Benzothiazolecarboxaldehyde,2-methyl-(8CI,9CI) 20061-46-5
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 95%
- Supply Ability
- 500kg
- Release date
- 2018-08-19