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"2026-09-18", "fetched": 30, "readable": 30, "median_per_unit": 35.77, "low_by_unit": {"g": 4.52, "ml": 30.56}}, {"date": "2026-09-19", "fetched": 29, "readable": 29, "median_per_unit": 35.2, "low_by_unit": {"g": 4.52, "ml": 30.56}}], "yahoo": {"date": "2026-09-19", "n": 31, "median_per_unit": 35.6, "source": "Yahoo!ショッピング 商品検索 API v3（レビュー数順の上位90件）", "items": [{"rank": 1, "name": "花王　ハイターE　5kg×3本／ケース  業務用　花王プロシリーズ　【漂白剤】", "price": 3300, "qty": 15000.0, "unit": "g", "per_unit_price": 22.0, "evidence": "5kgx3本", "reviews": 35, "stars": 4.74, "shop": "業務用消耗品通販.com Yahoo!店", "url": "https://store.shopping.yahoo.co.jp/fujix-sizai/4901301021229.html", "image": "https://item-shopping.c.yimg.jp/i/g/fujix-sizai_4901301021229"}, {"rank": 2, "name": "花王プロフェッショナル ハイターE ( 5Kg )/ 花王プロフェッショナル", "price": 1179, "qty": 5000.0, "unit": "g", "per_unit_price": 23.58, "evidence": "5Kg", "reviews": 33, "stars": 4.64, "shop": "爽快ドラッグ", "url": "https://store.shopping.yahoo.co.jp/soukai/4901301021229.html", 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"https://store.shopping.yahoo.co.jp/n-mark/4901301021144.html", "image": "https://item-shopping.c.yimg.jp/i/g/n-mark_4901301021144"}, {"rank": 9, "name": "ハイター 特大 2500ml 1個 衣料用漂白剤 花王", "price": 771, "qty": 2500.0, "unit": "ml", "per_unit_price": 30.84, "evidence": "2500ml 1個", "reviews": 48, "stars": 4.81, "shop": "LOHACO by アスクル", "url": "https://lohaco.yahoo.co.jp/store/h-lohaco/item/e733959/", "image": "https://item-shopping.c.yimg.jp/i/g/rd-lohaco_e733959"}, {"rank": 10, "name": "花王 ハイター 1500ml", "price": 478, "qty": 1500.0, "unit": "ml", "per_unit_price": 31.867, "evidence": "1500ml", "reviews": 146, "stars": 4.55, "shop": "LOHACO by アスクル", "url": "https://lohaco.yahoo.co.jp/store/h-lohaco/item/a534332/", "image": "https://item-shopping.c.yimg.jp/i/g/rd-lohaco_a534332"}, {"rank": 11, "name": "花王 キッチン ハイター 特大 2500ml", "price": 798, "qty": 2500.0, "unit": "ml", "per_unit_price": 31.92, "evidence": "2500ml", "reviews": 17, "stars": 4.76, "shop": "サンドラッグe-shop", "url": "https://store.shopping.yahoo.co.jp/sundrugec/4901301008619.html", "image": "https://item-shopping.c.yimg.jp/i/g/sundrugec_4901301008619"}, {"rank": 12, "name": "花王 キッチン ハイター 1500ml", "price": 498, "qty": 1500.0, "unit": "ml", "per_unit_price": 33.2, "evidence": "1500ml", "reviews": 21, "stars": 4.62, "shop": "サンドラッグe-shop", "url": "https://store.shopping.yahoo.co.jp/sundrugec/4901301019370.html", "image": "https://item-shopping.c.yimg.jp/i/g/sundrugec_4901301019370"}, {"rank": 13, "name": "花王プロフェッショナル キッチンハイター 業務用 ( 5kg )/ 花王プロフェッショナル", "price": 1716, "qty": 5000.0, "unit": "g", "per_unit_price": 34.32, "evidence": "5kg", "reviews": 20, "stars": 4.75, "shop": "爽快ドラッグ", "url": "https://store.shopping.yahoo.co.jp/soukai/4901301021144.html", "image": "https://item-shopping.c.yimg.jp/i/g/soukai_4901301021144"}, {"rank": 14, "name": "キッチンハイター 特大 2500ml 漂白剤", "price": 864, "qty": 2500.0, "unit": "ml", "per_unit_price": 34.56, "evidence": "2500ml", "reviews": 253, "stars": 4.73, "shop": "LOHACO by アスクル", "url": "https://lohaco.yahoo.co.jp/store/h-lohaco/item/a534283/", "image": "https://item-shopping.c.yimg.jp/i/g/rd-lohaco_a534283"}, {"rank": 15, "name": "キッチンハイター キッチン用漂白剤 特大 ボトル ( 2500ml )/ ハイター", "price": 866, "qty": 2500.0, "unit": "ml", "per_unit_price": 34.64, "evidence": "2500ml", "reviews": 21, "stars": 3.62, "shop": "爽快ドラッグ", "url": "https://store.shopping.yahoo.co.jp/soukai/4901301008619.html", "image": "https://item-shopping.c.yimg.jp/i/g/soukai_4901301008619"}, {"rank": 16, "name": "キッチンハイター 業務用 漂白剤 5kg花王", "price": 1780, "qty": 5000.0, "unit": "g", "per_unit_price": 35.6, "evidence": "5kg", "reviews": 90, "stars": 4.58, "shop": "LOHACO by アスクル", "url": "https://lohaco.yahoo.co.jp/store/h-lohaco/item/a534239/", "image": "https://item-shopping.c.yimg.jp/i/g/rd-lohaco_a534239"}, {"rank": 17, "name": "花王 キッチン ハイター 600ml", "price": 218, "qty": 600.0, "unit": "ml", "per_unit_price": 36.333, "evidence": "600ml", "reviews": 47, "stars": 4.68, "shop": 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"reviews": 14, "stars": 4.43, "shop": "カウモール", "url": "https://store.shopping.yahoo.co.jp/kaumall/52366116.html", "image": "https://item-shopping.c.yimg.jp/i/g/kaumall_52366116"}, {"rank": 21, "name": "ハイター 1500ml 1セット（2個入） 衣料用漂白剤 花王", "price": 912, "qty": 1500.0, "unit": "ml", "per_unit_price": 60.8, "evidence": "1500ml 1セット", "reviews": 17, "stars": 4.71, "shop": "LOHACO by アスクル", "url": "https://lohaco.yahoo.co.jp/store/h-lohaco/item/aa53309/", "image": "https://item-shopping.c.yimg.jp/i/g/rd-lohaco_aa53309"}, {"rank": 22, "name": "キッチンハイター 業務用 漂白剤 5kg 1セット（2個）花王", "price": 3450, "qty": 5000.0, "unit": "g", "per_unit_price": 69.0, "evidence": "5kg 1セット", "reviews": 15, "stars": 4.6, "shop": "LOHACO by アスクル", "url": "https://lohaco.yahoo.co.jp/store/h-lohaco/item/pk26445/", "image": "https://item-shopping.c.yimg.jp/i/g/rd-lohaco_pk26445"}, {"rank": 23, "name": "【6本・おまけ付】1000ml・花王 キッチン 泡ハイター（付け替え用） おまけ付き 業務用 除菌 漂白剤 （地域限定 1ケース送料無料）　1L×6本入", "price": 4180, "qty": 6000.0, "unit": "ml", "per_unit_price": 69.667, "evidence": "1Lx6本", "reviews": 22, "stars": 4.86, "shop": "パッケージ・マルシェ", "url": "https://store.shopping.yahoo.co.jp/package-marche/66068.html", "image": "https://item-shopping.c.yimg.jp/i/g/package-marche_66068"}, {"rank": 24, "name": "花王 キッチン泡ハイター つけかえ用 400ml", "price": 348, "qty": 400.0, "unit": "ml", "per_unit_price": 87.0, "evidence": "400ml", "reviews": 37, "stars": 4.86, "shop": "サンドラッグe-shop", "url": "https://store.shopping.yahoo.co.jp/sundrugec/4901301435934.html", "image": "https://item-shopping.c.yimg.jp/i/g/sundrugec_4901301435934"}, {"rank": 25, "name": "花王 キッチン泡ハイター 無臭性 つけかえ用 400ml", "price": 348, "qty": 400.0, "unit": "ml", "per_unit_price": 87.0, "evidence": "400ml", "reviews": 15, "stars": 4.6, "shop": "サンドラッグe-shop", "url": "https://store.shopping.yahoo.co.jp/sundrugec/4901301435958.html", "image": "https://item-shopping.c.yimg.jp/i/g/sundrugec_4901301435958"}, {"rank": 26, "name": "ハイター 漂白剤 小 ボトル ( 600ml )/ ハイター", "price": 528, "qty": 600.0, "unit": "ml", "per_unit_price": 88.0, "evidence": "600ml", "reviews": 15, "stars": 4.73, "shop": "爽快ドラッグ", "url": "https://store.shopping.yahoo.co.jp/soukai/4901301017246.html", "image": "https://item-shopping.c.yimg.jp/i/g/soukai_4901301017246"}, {"rank": 27, "name": "キッチン泡ハイター ハンディスプレー 付替用400mL 1個 花王", "price": 398, "qty": 400.0, "unit": "ml", "per_unit_price": 99.5, "evidence": "400mL 1個", "reviews": 687, "stars": 4.59, "shop": "LOHACO by アスクル", "url": "https://lohaco.yahoo.co.jp/store/h-lohaco/item/9554780/", "image": "https://item-shopping.c.yimg.jp/i/g/rd-lohaco_9554780"}, {"rank": 28, "name": "キッチン泡ハイター ハンディスプレー 本体400mL 1個 花王", "price": 462, "qty": 400.0, "unit": "ml", "per_unit_price": 115.5, "evidence": "400mL 1個", "reviews": 223, "stars": 4.6, "shop": "LOHACO by アスクル", "url": "https://lohaco.yahoo.co.jp/store/h-lohaco/item/a534235/", "image": "https://item-shopping.c.yimg.jp/i/g/rd-lohaco_a534235"}, {"rank": 29, "name": "キッチン泡ハイター ハンディスプレー 付替用400mL 1セット（1個×2） 花王", "price": 788, "qty": 400.0, "unit": "ml", "per_unit_price": 197.0, "evidence": "400mL 1セット", "reviews": 708, "stars": 4.7, "shop": "LOHACO by アスクル", "url": "https://lohaco.yahoo.co.jp/store/h-lohaco/item/p683224/", "image": "https://item-shopping.c.yimg.jp/i/g/rd-lohaco_p683224"}, {"rank": 30, "name": "キッチン泡ハイター ハンディスプレー 本体400mL 1セット（1個×2） 花王", "price": 821, "qty": 400.0, "unit": "ml", "per_unit_price": 205.25, "evidence": "400mL 1セット", "reviews": 91, "stars": 4.69, "shop": "LOHACO by アスクル", "url": "https://lohaco.yahoo.co.jp/store/h-lohaco/item/p683222/", "image": "https://item-shopping.c.yimg.jp/i/g/rd-lohaco_p683222"}, {"rank": 31, "name": "キッチン泡ハイター ハンディスプレー 付替用400mL 1セット（1個×4） 花王", "price": 1540, "qty": 400.0, "unit": "ml", "per_unit_price": 385.0, "evidence": "400mL 1セット", "reviews": 689, "stars": 4.79, "shop": "LOHACO by アスクル", "url": "https://lohaco.yahoo.co.jp/store/h-lohaco/item/p683225/", "image": "https://item-shopping.c.yimg.jp/i/g/rd-lohaco_p683225"}]}, "main_unit": {"unit": "ml", "unit_label": "100ml", "median": 76.47, "low": 30.56, "n": 18}, "answer": "2026-09-19、塩素系漂白剤がいちばん安いのは100mlあたり5円（楽天市場・【業務用計量キャップ・業務用洗剤】花王 プロシリーズ Kao・226円で5,000g）。ふつうは100mlあたり35円です。"}