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Methyl 2-(chlorosulfonyl)benzoate

Product Name
Methyl 2-(chlorosulfonyl)benzoate
CAS No.
26638-43-7
Chemical Name
Methyl 2-(chlorosulfonyl)benzoate
Synonyms
CBC;thyl 2-(chlorosulfon;Methly 2-chlorosulfonylbenzoate;2-Chlorosulfonyl methyl benzoate;Methyl 2-(chorosulfonyl)benzoate;METHYL 2-(CHLOROSULFONYL)BENZOATE;METHYL-O-(CHLOROSULFONYL)BENZOATE;Methyl 2-(chlorosulphonyl)benzoate;Methyl 2-(chlorosulfonyl)benzoateCBC;O-CARBOMETHOXYBENZENESULFONYLCHLORIDE
CBNumber
CB9665499
Molecular Formula
C8H7ClO4S
Formula Weight
234.66
MOL File
26638-43-7.mol
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Methyl 2-(chlorosulfonyl)benzoate Property

Melting point:
62-63 °C
Boiling point:
344.8±25.0 °C(Predicted)
Density 
1.4452 (estimate)
storage temp. 
Inert atmosphere,2-8°C
form 
Crystalline Powder or Chunks
color 
White to beige or pink
Water Solubility 
reacts
Sensitive 
Moisture Sensitive
InChI
InChI=1S/C8H7ClO4S/c1-13-8(10)6-4-2-3-5-7(6)14(9,11)12/h2-5H,1H3
InChIKey
HUNUAFNLLYVTQD-UHFFFAOYSA-N
SMILES
C(OC)(=O)C1=CC=CC=C1S(Cl)(=O)=O
CAS DataBase Reference
26638-43-7(CAS DataBase Reference)
EPA Substance Registry System
Benzoic acid, 2-(chlorosulfonyl)-, methyl ester (26638-43-7)
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Safety

Hazard Codes 
C
Risk Statements 
34-29-14
Safety Statements 
45-36/37/39-30-26-22
RIDADR 
3261
Hazard Note 
Corrosive
TSCA 
Yes
HazardClass 
8
PackingGroup 
III
HS Code 
29163990
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H314Causes severe skin burns and eye damage

H318Causes serious eye damage

Precautionary statements

P301+P330+P331IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

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N-Bromosuccinimide Price

TRC
Product number
M220563
Product name
Methyl2-(Chlorosulfonyl)benzoate
Packaging
5mg
Price
$60
Updated
2021/12/16
SynQuest Laboratories
Product number
6662-5-Y8
Product name
Methyl 2-(chlorosulfonyl)benzoate
Packaging
5G
Price
$64
Updated
2021/12/16
Frontier Specialty Chemicals
Product number
JK187762
Product name
Methyl2-(chlorosulfonyl)benzoate
Purity
95%
Packaging
5g
Price
$66
Updated
2021/12/16
Biosynth Carbosynth
Product number
FC12436
Product name
2-Chlorosulfonyl methyl benzoate
Packaging
5G
Price
$70
Updated
2021/12/16
AK Scientific
Product number
W4991
Product name
Methyl2-(chlorosulfonyl)benzoate
Packaging
10g
Price
$97
Updated
2021/12/16
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Methyl 2-(chlorosulfonyl)benzoate Chemical Properties,Usage,Production

Chemical Properties

white to beige or pink crystalline powder

Uses

Methyl 2-(chlorosulfonyl)benzoate can be used as intermediates in pharmaceuticals, saccharin, dyes, & pigments.

Synthesis Reference(s)

Synthesis, p. 1203, 1992 DOI: 10.1055/s-1992-26333

Synthesis

134-20-3

26638-43-7

2-Methoxycarbonylbenzenesulfonyl chloride was synthesized by a continuous flow reaction system using methyl o-aminobenzoate as starting material. The system configuration consisted of two tubular reactors: the first reactor (20 m long, 15 mm diameter) and the second reactor (40 m long, 10 mm diameter, filled with 3 mm diameter copper spheres). The reaction materials included 1587 g of methyl o-aminobenzoate (35 wt% hydrochloric acid solution containing 1916 g of hydrogen chloride), 6720 g of 30 wt% sodium nitrite solution (containing 2016 g of sodium nitrite), 6825 g of saturated sodium bisulfite solution (containing 2730 g of sodium bisulfite), and 7936 g of methylene chloride. The operating steps are as follows: 1. the first tubular reactor was maintained at 80 °C through a heat exchanger, and 20 wt% hydrochloric acid, 40 wt% sodium nitrite solution, and methyl o-aminobenzoate were continuously transported by three metering pumps at a flow rate ratio of 1:5:3, respectively, to the first mixer, and after mixing, they were fed into the first reactor for diazotization reaction with a residence time of 100 s. The reaction solution was collected in the fourth storage tank. 2. the saturated sodium bisulfite solution and methylene chloride are stored in the fifth storage tank, respectively, and transported to the second mixer through the fourth and fifth metering pumps with the diazotization reaction solution in the ratio of methyl o-aminobenzoate to sodium bisulfite molar ratio of 1:2.5, and the ratio of flow rate of methyl o-aminobenzoate to methylene chloride flow rate of 1:5. 3. the mixed solution was reacted in the second reactor at 100°C for a residence time of 90 seconds. 4. Upon completion of the reaction, the reaction solution was collected for 2 minutes (equivalent to an amount of 624 g of methyl phthalate), transferred to a receiver tank for layering, separation of the organic layer, evaporation of methylene chloride and drying to give 910 g of 2-methoxycarbonylbenzenesulfonyl chloride in 94% yield.

References

[1] Organic Process Research and Development, 2016, vol. 20, # 12, p. 2116 - 2123
[2] Patent: CN105732441, 2016, A. Location in patent: Paragraph 0041; 0042
[3] Patent: CN105949091, 2016, A. Location in patent: Paragraph 0030

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View Lastest Price from Methyl 2-(chlorosulfonyl)benzoate manufacturers

Career Henan Chemical Co
Product
Methyl 2-(chlorosulfonyl)benzoate 26638-43-7
Price
US $1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
200kgs
Release date
2020-01-29

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