<\/p>\n
Structural formula<\/p>\n
2,5-Dichlorobenzoic acid,<\/p>\n
Pesticides in Chinese (Simplified Chinese); Aliphatic carboxylic acids and their derivatives<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
CAS number:<\/b>50-79-3<\/p>\n
MDL number:<\/b>MFCD00002416<\/p>\n
EINECS number:<\/b>200-065-7<\/p>\n
RTECS number:<\/b>DG6825000<\/p>\n
BRN number:<\/b>973353<\/p>\n
PubChem number:<\/b>24848693<\/p>\nPhysical property data<\/h2>\n
1. Properties: White needle-like crystalline powder. Partially volatilized in steam. <\/p>\n
2. Density (g\/mL, 25\/4\u2103): Undetermined<\/p>\n
3. Relative vapor density (g\/mL, air=1): Undetermined<\/p>\n
4. Melting point (\u00baC): 154.4\u00b0C (lit.)<\/p>\n
5. Boiling point (\u00baC, normal pressure): 301 \u00b0C (lit.)<\/p>\n
6 . Boiling point (\u00baC, 5.2 kPa): Not determined<\/p>\n
7. Refractive index: Not determined<\/p>\n
8. Flash point (\u00baC): 300-302\u00b0C<\/p>\n
9. Specific rotation (\u00ba): Undetermined<\/p>\n
10. Autoignition point or ignition temperature (\u00baC): Undetermined<\/p>\n
11. Vapor pressure (kPa, 25 \u00baC ): Undetermined<\/p>\n
12. Saturated vapor pressure (kPa, 60 \u00baC): Undetermined<\/p>\n
13. Heat of combustion (KJ\/mol): Undetermined<\/p>\n
14. Critical temperature (\u00baC): Undetermined<\/p>\n
15. Critical pressure (KPa): Undetermined<\/p>\n
16. Log value of oil-water (octanol\/water) partition coefficient: Undetermined<\/p>\n
17. Explosion upper limit (%, V\/V): Undetermined<\/p>\n
18. Explosion lower limit (%, V\/V): Undetermined<\/p>\n
19. Solubility: Soluble in ethanol and ether, soluble in hot water (<0.1 g\/100 mL at 19 \u00baC). <\/p>\n<\/p>\n
\n 1. Acute toxicity: mouse subcutaneous LD50: 1200mg\/kg; mouse intraperitoneal LD50: 237mg\/kg 2. Mutagenicity: mutation testing system – not other specifiedTEST systems: bacteria – Salmonella typhimurium: 1mg\/L\n <\/p>\n
\n None\n <\/p>\n
1. Reference value for hydrophobic parameter calculation (XlogP): None<\/P><\/p>\n
2. Number of hydrogen bond donors: 1<\/p>\n
3. Number of hydrogen bond acceptors: 2<\/p>\n
4. Number of rotatable chemical bonds: 1<\/p>\n
5. Number of tautomers: none<\/p>\n
6. Topological molecule polar surface area 37.3<\/p>\n
7. Number of heavy atoms: 11<\/p>\n
8. Surface charge: 0<\/p>\n
9. Complexity: 161<\/p>\n
10. Number of isotope atoms: 0<\/p>\n
11. Determine the number of atomic stereocenters: 0<\/p>\n
12. Uncertain number of atomic stereocenters: 0<\/p>\n
13. Determine the number of chemical bond stereocenters: 0 <\/p>\n
14. Uncertain chemical bond stereocenterAmount: 0<\/p>\n
15. Number of covalent bond units: 1<\/p>\n<\/p>\n
This product should be sealed and stored in a dry place away from light. Storage and transportation according to regulations on toxic chemicals. <\/span><\/p>\n<\/p>\nSynthesis method<\/h2>\n1. Phosgene method: 2,5-dichlorobenzoyl chloride is obtained by reacting p-dichlorobenzene and phosgene, and then hydrolyzed. <\/p>\n2. The chloromethylation method is obtained by reacting p-dichlorobenzene with paraformaldehyde and then oxidizing it with potassium permanganate. The yield of chloromethylation of p-dichlorobenzene was 53.4%, and the yield of the third step oxidation reaction was 83%<\/p>\n<\/p>\n<\/p>\n3. The trichlorobenzene method uses 1,2,4-trichlorobenzene as raw material to prepare 2,5-dichlorobenzonitrile and then undergoes alkaline hydrolysis. <\/p>\n4. Benzoyl chloride method is obtained by chlorination and hydrolysis of benzoyl chloride. The chlorination temperature of benzoyl chloride is controlled between 35-45\u00b0C. The main component of the chloride obtained is 2,5-dichlorobenzoyl chloride (content 65%). Then, in the presence of concentrated sulfuric acid, it is chlorinated at 40-45\u00b0C. Hydrolyzed at 50\u2103. <\/p>\n5. Dichlorobenzene carbon tetrachloride method. <\/p>\n<\/p>\n<\/p>\nPurpose<\/h2>\nAs an intermediate in organic synthesis. It is used to synthesize the herbicides legumin and dicaoping. This pesticide has less harmful effects and is not affected by rainy weather. <\/p>\n<\/p>\n extended-reading:https:\/\/www.bdmaee.net\/cas-251-964-6\/<\/a><\/br>extended-reading:https:\/\/www.bdmaee.net\/fascat4201-catalyst-cas-818-08-6-dibutyl-tin-oxide\/<\/a><\/br>extended-reading:https:\/\/www.bdmaee.net\/polyurethane-catalyst-smp-catalyst-smp-sponge-catalyst-smp\/<\/a><\/br>extended-reading:https:\/\/www.bdmaee.net\/wp-content\/uploads\/2022\/08\/NEWTOP2.jpg<\/a><\/br>extended-reading:https:\/\/www.newtopchem.com\/archives\/44390<\/a><\/br>extended-reading:https:\/\/www.cyclohexylamine.net\/category\/product\/page\/16\/<\/a><\/br>extended-reading:https:\/\/www.newtopchem.com\/archives\/44177<\/a><\/br>extended-reading:https:\/\/www.newtopchem.com\/archives\/913<\/a><\/br>extended-reading:https:\/\/www.bdmaee.net\/monobutyltin-oxide-2\/<\/a><\/br>extended-reading:https:\/\/www.cyclohexylamine.net\/polyurethane-tertiary-amine-catalyst-catalyst-r-8020\/<\/a><\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"Structural formula Business number 0146 Molecular formu…<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":48055,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[6],"tags":[24,15099],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/posts\/48056"}],"collection":[{"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/comments?post=48056"}],"version-history":[{"count":0,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/posts\/48056\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/media\/48055"}],"wp:attachment":[{"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/media?parent=48056"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/categories?post=48056"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/tags?post=48056"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
1. Phosgene method: 2,5-dichlorobenzoyl chloride is obtained by reacting p-dichlorobenzene and phosgene, and then hydrolyzed. <\/p>\n
2. The chloromethylation method is obtained by reacting p-dichlorobenzene with paraformaldehyde and then oxidizing it with potassium permanganate. The yield of chloromethylation of p-dichlorobenzene was 53.4%, and the yield of the third step oxidation reaction was 83%<\/p>\n
3. The trichlorobenzene method uses 1,2,4-trichlorobenzene as raw material to prepare 2,5-dichlorobenzonitrile and then undergoes alkaline hydrolysis. <\/p>\n
4. Benzoyl chloride method is obtained by chlorination and hydrolysis of benzoyl chloride. The chlorination temperature of benzoyl chloride is controlled between 35-45\u00b0C. The main component of the chloride obtained is 2,5-dichlorobenzoyl chloride (content 65%). Then, in the presence of concentrated sulfuric acid, it is chlorinated at 40-45\u00b0C. Hydrolyzed at 50\u2103. <\/p>\n
5. Dichlorobenzene carbon tetrachloride method. <\/p>\n
<\/p>\n<\/p>\n
As an intermediate in organic synthesis. It is used to synthesize the herbicides legumin and dicaoping. This pesticide has less harmful effects and is not affected by rainy weather. <\/p>\n<\/p>\n
extended-reading:https:\/\/www.bdmaee.net\/cas-251-964-6\/<\/a><\/br>extended-reading:https:\/\/www.bdmaee.net\/fascat4201-catalyst-cas-818-08-6-dibutyl-tin-oxide\/<\/a><\/br>extended-reading:https:\/\/www.bdmaee.net\/polyurethane-catalyst-smp-catalyst-smp-sponge-catalyst-smp\/<\/a><\/br>extended-reading:https:\/\/www.bdmaee.net\/wp-content\/uploads\/2022\/08\/NEWTOP2.jpg<\/a><\/br>extended-reading:https:\/\/www.newtopchem.com\/archives\/44390<\/a><\/br>extended-reading:https:\/\/www.cyclohexylamine.net\/category\/product\/page\/16\/<\/a><\/br>extended-reading:https:\/\/www.newtopchem.com\/archives\/44177<\/a><\/br>extended-reading:https:\/\/www.newtopchem.com\/archives\/913<\/a><\/br>extended-reading:https:\/\/www.bdmaee.net\/monobutyltin-oxide-2\/<\/a><\/br>extended-reading:https:\/\/www.cyclohexylamine.net\/polyurethane-tertiary-amine-catalyst-catalyst-r-8020\/<\/a><\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"Structural formula Business number 0146 Molecular formu…<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":48055,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[6],"tags":[24,15099],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/posts\/48056"}],"collection":[{"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/comments?post=48056"}],"version-history":[{"count":0,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/posts\/48056\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/media\/48055"}],"wp:attachment":[{"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/media?parent=48056"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/categories?post=48056"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/tags?post=48056"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Structural formula Business number 0146 Molecular formu…<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":48055,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[6],"tags":[24,15099],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/posts\/48056"}],"collection":[{"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/comments?post=48056"}],"version-history":[{"count":0,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/posts\/48056\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/media\/48055"}],"wp:attachment":[{"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/media?parent=48056"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/categories?post=48056"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/tags?post=48056"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
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