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High-Performance Liquid Chromatography in Endocrinology (Monographs on Endocrinology Book 30)

by H.L.J. Makin

In stock

Normal price

$89.99 is what it normally sells for.

Now
$89.99
Normally
$89.99
Lowest in 136 days
$89.99(Nov 4)
Highest
$149.00
Evidence: Strong136 days tracked1 price change

Where today's price sits

View on amazon.com (opens in a new tab)

Prices change. Confirm the price on Amazon before you buy. TrackPin may earn a commission if you buy, at no cost to you; it never changes a verdict.

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Good: 5%+ below normal. Great: 20%+ below. One email when it happens. No account, no newsletter.

The listing's crossed-out price

Not below normal

The listing shows

crossed out: List $149.00 −40%

Against its normal price

≈ 0% vs $89.99

This product has sold at or within 3% of $89.99 for at least about a week of the last 45 days, so today's price isn't below its normal price.

The crossed-out price is the reference shown on the listing. We don't know how it was set; we only compare it with prices we've observed. How we check →

Price history

Tracked since Jun 28 · 136 days · 1 price change

Loading the price chart.

  • Price
  • Normal $89.99
  • 5% or more below normal

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Get this as JSONThe same verdict and prices, from the TrackPin API.
GET/api/v1/product/B00HWUZ7BI
Request
curl https://trackpin.co/api/v1/product/B00HWUZ7BI \
  -H "x-api-key: $TRACKPIN_API_KEY"

This is exactly what the API returns for this product. Free keys include 100 requests a day.

Request a key
Live response, As of 19:32 UTC
{
  "asin": "B00HWUZ7BI",
  "title": "High-Performance Liquid Chromatography in Endocrinology (Monographs on Endocrinology Book 30)",
  "image": "https://m.media-amazon.com/images/I/41Ddtx5s-WL._AC_SL500_.jpg",
  "currency": "USD",
  "category": "eBooks",
  "category_label": "eBooks",
  "in_stock": true,
  "price": {
    "current_cents": 8999,
    "reference_cents": 8999,
    "discount_pct": 0,
    "is_deal": false,
    "observed_at": 1794407697226,
    "changed_at": 1793827989940,
    "checked_at": 1794407697226,
    "source": "stored"
  },
  "verdict": {
    "label": "normal",
    "text": "Normal price",
    "pct_vs_normal": 0,
    "evidence": "strong",
    "stale": false,
    "suspect": false,
    "steady_since": null,
    "sentence": "Normal price. $89.99 is what it normally sells for."
  },
  "listing_claim": {
    "label": "List:",
    "listing_reference_cents": 14900,
    "claimed_pct": 40,
    "real_pct": 0,
    "class": "not_below_normal",
    "observed_at": 1793829129740
  },
  "stats": {
    "min_cents": 8999,
    "max_cents": 14900,
    "avg_cents": 14456,
    "history_days": 136,
    "price_levels": 183,
    "price_changes": 1,
    "distinct_prices": 2,
    "lowest_at": 1793827989940
  },
  "history": [
    {
      "price_cents": 14900,
      "from": 1785297957076,
      "to": 1785297957076
    },
    {
      "price_cents": 14900,
      "from": 1785301201503,
      "to": 1785303522218
    },
    {
      "price_cents": 14900,
      "from": 1785305399448,
      "to": 1785321726530
    },
    {
      "price_cents": 14900,
      "from": 1785325162067,
      "to": 1793811452711
    },
    {
      "price_cents": 8999,
      "from": 1793827989940,
      "to": 1794407697226
    }
  ],
  "last_seen": 1794407697226
}
// … 178 more steps in the full response

Normal price: the lowest price level the product held for at least 15% of the last 45 days (about a week). Prices within 3% of each other count as one level, and we use the lowest price in that level. How we calculate it → Prices are observations of amazon.com and may be incomplete or delayed. TrackPin is not affiliated with Amazon.