SELECT 
  cscart_seo_names.object_id AS product_id, 
  cscart_seo_names.name AS seo_name, 
  cscart_seo_names.path AS seo_path 
FROM 
  cscart_seo_names 
WHERE 
  cscart_seo_names.object_id IN (
    242, 243, 6, 66, 166, 214, 219, 221, 223, 
    240, 241, 244, 245, 246, 248, 247, 278, 
    280, 282, 286, 287, 289, 315, 331, 335, 
    339, 341, 345, 346, 349, 350, 352
  ) 
  AND cscart_seo_names.type = "p" 
  AND cscart_seo_names.dispatch = "" 
  AND cscart_seo_names.lang_code = 'en'

Query time 0.00091

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "90.81"
    },
    "table": {
      "table_name": "cscart_seo_names",
      "access_type": "range",
      "possible_keys": [
        "PRIMARY",
        "dispatch"
      ],
      "key": "PRIMARY",
      "used_key_parts": [
        "object_id",
        "type",
        "dispatch",
        "lang_code"
      ],
      "key_length": "206",
      "rows_examined_per_scan": 42,
      "rows_produced_per_join": 42,
      "filtered": "100.00",
      "index_condition": "((`pankajecarter_systemfour`.`cscart_seo_names`.`object_id` in (242,243,6,66,166,214,219,221,223,240,241,244,245,246,248,247,278,280,282,286,287,289,315,331,335,339,341,345,346,349,350,352)) and (`pankajecarter_systemfour`.`cscart_seo_names`.`type` = 'p') and (`pankajecarter_systemfour`.`cscart_seo_names`.`dispatch` = '') and (`pankajecarter_systemfour`.`cscart_seo_names`.`lang_code` = 'en'))",
      "cost_info": {
        "read_cost": "82.41",
        "eval_cost": "8.40",
        "prefix_cost": "90.81",
        "data_read_per_join": "71K"
      },
      "used_columns": [
        "name",
        "object_id",
        "type",
        "dispatch",
        "path",
        "lang_code"
      ]
    }
  }
}

Result

product_id seo_name seo_path
6 toshiba-32c120u-32-class-720p-hd-lcd-tv 166/174/191
66 xrs-9970g 166/175/189
166 nikon-1-j1-two-lens-wide-angle-kit-red 166/196/198
214 asus-cp6130 167/168
219 series-3-15-6-laptop-en 167/169
221 series-9-13-3-laptop 167/169
223 samsung-galaxy-tab-8-9-wi-fi-only-32gb-metallic-gray 167/165
240 apple-ipad-with-retina-display-wi-fi-64gb-black 167/165
241 apple-ipad-with-retina-display-wi-fi-32gb-white 167/165
242 apple-ipod-classic-black 166/177/178
243 apple-ipod-classic-white 166/177/178
244 packard-bell-onetwo 167/168
245 apple-iphone-5c-32gb-cell-phone-green 166/234/235
246 gopro-hero3-black-edition-camera 166/196/199
247 nokia-n1-pad-7-9-quad-core-64bit-2-3ghz-2gb-32gb-android-5-0 167/165
248 x-box-one 245/248
278 t-shirt-color-white 223/224
280 t-shirt-color-black 223/224
282 t-shirt-color-blue 223/224
286 super-luxury-rooms 241/242
287 luxury-rooms 241/242
289 vip-rooms 241/242
315 luxury-rooms-en 241/242
331 test123 166/234/235
335 test123-en-2 166/234/235
339 test123-en-3 166/234/235
341 test123-en-4 166/234/235
345 2011-ice-queen-en-4 203/215/216
346 2011-ice-queen-en-5 203/215/216
349 46-class-45-9-diag-lcd-610-series-tv-en-2 166/174/191
350 46-class-45-9-diag-lcd-610-series-tv-en-3 166/174/191
352 18-55mm-portrait-lens-en 166/196/200