SELECT 
  product_id, 
  amount 
FROM 
  cscart_warehouses_destination_products_amount 
WHERE 
  product_id IN (
    51505, 51493, 51511, 51046, 51439, 51544, 
    51054, 51535, 51546, 51548, 51438
  ) 
  AND destination_id = 116 
  AND storefront_id = 1

Query time 0.00037

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "7.71"
    },
    "table": {
      "table_name": "cscart_warehouses_destination_products_amount",
      "access_type": "range",
      "possible_keys": [
        "PRIMARY",
        "idx_storefront_id"
      ],
      "key": "PRIMARY",
      "used_key_parts": [
        "product_id",
        "destination_id",
        "storefront_id"
      ],
      "key_length": "9",
      "rows_examined_per_scan": 11,
      "rows_produced_per_join": 11,
      "filtered": "100.00",
      "index_condition": "((`test_uchur_k`.`cscart_warehouses_destination_products_amount`.`storefront_id` = 1) and (`test_uchur_k`.`cscart_warehouses_destination_products_amount`.`destination_id` = 116) and (`test_uchur_k`.`cscart_warehouses_destination_products_amount`.`product_id` in (51505,51493,51511,51046,51439,51544,51054,51535,51546,51548,51438)))",
      "cost_info": {
        "read_cost": "6.61",
        "eval_cost": "1.10",
        "prefix_cost": "7.71",
        "data_read_per_join": "176"
      },
      "used_columns": [
        "destination_id",
        "storefront_id",
        "product_id",
        "amount"
      ]
    }
  }
}

Result

product_id amount
51046 4
51054 1
51438 1
51439 1
51493 3
51505 5
51511 5
51535 3
51544 2
51546 2
51548 9