| Company Name: |
SuZhou ShiYa Biopharmaceuticals, Inc.
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| Tel: |
0512-52358471 17715136450 |
| Email: |
sales@shiyabiopharm.com |
| Products Intro: |
Product Name:5-Hydroxy-2-methyl-4-nitro-benzoic acid
Purity:95% Package:1g;5g Remarks:A1-2945
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| Company Name: |
Debye Scientific Corporation
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| Tel: |
00852-2521 1836 |
| Email: |
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| Products Intro: |
Product Name:5-hydroxy-2-methyl-4-nitrobenzoic acid
CAS:199929-14-1
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| | Benzoic acid, 5-hydroxy-2-methyl-4-nitro- (9CI) Basic information |
| | Benzoic acid, 5-hydroxy-2-methyl-4-nitro- (9CI) Chemical Properties |
| Boiling point | 388.0±42.0 °C(Predicted) | | density | 1.534±0.06 g/cm3(Predicted) | | pka | 2.83±0.13(Predicted) |
| | Benzoic acid, 5-hydroxy-2-methyl-4-nitro- (9CI) Usage And Synthesis |
| Chemical Properties | yellow solid | | Synthesis | A solution of 5-hydroxy-2-methylbenzoic acid( 5.00 g, 32.9 mmol, 1.0 eq) in H2SO4 (50 mL, 98% purity) was cooled to 0 °C and to this mixture was added KNO3 (3.49 g, 34.5 mmol, 1.1 eq) at 0 °C. The mixture was stirred at 20 °C for 1 h. TLC indicated that the starting material was completely consumed, and a main spot was detected. The mixture was treated with ice water (40 mL) slowly and extracted with DCM(20 mL x 5). The combined organic layers were dried over NazSC，filtered, and concentrated under vacuum to give a residue which was purified by flash silica gel chromatography. Benzoic acid, 5-hydroxy-2-methyl-4-nitro- (9CI) (640 mg, 3.25 mmol, 10% yield) was obtained after purification.
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| | Benzoic acid, 5-hydroxy-2-methyl-4-nitro- (9CI) Preparation Products And Raw materials |
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