Kitkat Crisp Wafers In Milk Chocolateolate by The Hershey Company: Similar Foods

Product:
Crisp Wafers In Milk Chocolateolate
Brand:
Kitkat
Maker:
The Hershey Company

A list of and comparison with similar foods:

The similarity ranking is calculated with AI algorithms using food nutrient and ingredient data published by the U.S. Department of Agriculture as published in April of 2024. The data will be updated every 6 months.

Find more information about this particular food on the USDA web site: https://fdc.nal.usda.gov/fdc-app.html#/food-details/1646327/nutrients

Similar foods in terms of nutrients sorted by similarity, most similar first:

Kitkat Crisp Wafers In Milk Chocolateolate by The Hershey Company

All Nutrients Per 100g (3.527 oz)
Calories 512.0kcal
Total Fat27.91g
Saturated Fat 18.6g
Trans Fat 0.0g
Cholesterol 12.0mg
Sodium 70.0mg
Total Carbohydrates 65.12g
Dietary Fiber 2.3g
Sugars 51.16g
Sugars, added N/A
Protein 6.98g
Core Vitamins and Minerals
Vitamin A, IUN/A
Vitamin C, total ascorbic acidN/A
Calcium, Ca151.0mg
Iron, Fe2.33mg
Potassium, K291.0mg
Vitamin D, IU0.0IU
Ingredients
Sugar; Wheat Flour; Skim Milk; Cocoa Butter; Chocolate; Palm Kernel Oil; Milk Fat; Lactose (milk); Contains 2% Or Less Of: Lecithin (soy); Pgpr; Vanillin, Artificial Flavor; Salt; Yeast; Baking Soda
Difference/similarity score (lower is better, 0.0 means nutrients are identical): 14.75
Kit Kat Crisp Wafers In Milk Chocolateolate Miniatures, Milk Chocolateolate by The Hershey Company

All Nutrients Per 100g (3.527 oz)
Calories 500.0kcal (-12.00kcal, -2.34%)
Total Fat26.47g (-1.44g, -5.16%)
Saturated Fat 14.71g (-3.89g, -20.91%)
Trans Fat 0.0g (=)
Cholesterol 15.0mg (+3.00mg, +25.00%)
Sodium 74.0mg (+4.00mg, +5.71%)
Total Carbohydrates 64.71g (-0.41g, -0.63%)
Dietary Fiber 2.9g (+0.60g, +26.09%)
Sugars 52.94g (+1.78g, +3.48%)
Sugars, added N/A
Protein 5.88g (-1.10g, -15.76%)
Core Vitamins and Minerals
Vitamin A, IUN/A
Vitamin C, total ascorbic acidN/A
Calcium, Ca147.0mg (-4.00mg, -2.65%)
Iron, Fe2.65mg (+0.32mg, +13.73%)
Potassium, K294.0mg (+3.00mg, +1.03%)
Vitamin D, IUN/A
Other Nutrients
Vitamin D (D2 + D3)1.0ug
Ingredients
Sugar; Wheat Flour; Cocoa Butter; Chocolate; Lactose (milk); Vegetable Oil [palm Oil; Palm Kernel Oil]; Skim Milk; Milk Fat; Contains 2% Or Less Of: Lecithin (soy); Pgpr; Vanillin, Artificial Flavor; Salt; Yeast; Baking Soda
Difference/similarity score (lower is better, 0.0 means nutrients are identical): 15.64
Kitkat Crisp Wafers In Milk Chocolateolate, Milk Chocolateolate by The Hershey Company

All Nutrients Per 100g (3.527 oz)
Calories 500.0kcal (-12.00kcal, -2.34%)
Total Fat26.19g (-1.72g, -6.16%)
Saturated Fat 16.67g (-1.93g, -10.38%)
Trans Fat 0.0g (=)
Cholesterol 12.0mg (=)
Sodium 71.0mg (+1.00mg, +1.43%)
Total Carbohydrates 64.29g (-0.83g, -1.27%)
Dietary Fiber 2.4g (+0.10g, +4.35%)
Sugars 52.38g (+1.22g, +2.38%)
Sugars, added N/A
Protein 7.14g (+0.16g, +2.29%)
Core Vitamins and Minerals
Vitamin A, IUN/A
Vitamin C, total ascorbic acidN/A
Calcium, Ca143.0mg (-8.00mg, -5.30%)
Iron, Fe2.62mg (+0.29mg, +12.45%)
Potassium, K286.0mg (-5.00mg, -1.72%)
Vitamin D, IUN/A
Ingredients
Sugar; Wheat Flour; Skim Milk; Cocoa Butter; Chocolate; Vegetable Oil [palm Kernel Oil; Palm Oil]; Milk Fat; Lactose (milk); Contains 2% Or Less Of: Lecithin (soy); Pgpr; Vanillin, Artificial Flavor; Salt; Yeast; Baking Soda
Difference/similarity score (lower is better, 0.0 means nutrients are identical): 15.64
Kit Kat Milk Chocolateolate by The Hershey Company

All Nutrients Per 100g (3.527 oz)
Calories 500.0kcal (-12.00kcal, -2.34%)
Total Fat26.19g (-1.72g, -6.16%)
Saturated Fat 16.67g (-1.93g, -10.38%)
Trans Fat 0.0g (=)
Cholesterol 12.0mg (=)
Sodium 71.0mg (+1.00mg, +1.43%)
Total Carbohydrates 64.29g (-0.83g, -1.27%)
Dietary Fiber 2.4g (+0.10g, +4.35%)
Sugars 52.38g (+1.22g, +2.38%)
Sugars, added N/A
Protein 7.14g (+0.16g, +2.29%)
Core Vitamins and Minerals
Vitamin A, IUN/A
Vitamin C, total ascorbic acidN/A
Calcium, Ca143.0mg (-8.00mg, -5.30%)
Iron, Fe2.62mg (+0.29mg, +12.45%)
Potassium, K286.0mg (-5.00mg, -1.72%)
Vitamin D, IUN/A
Ingredients
Sugar; Wheat Flour; Skim Milk; Cocoa Butter; Chocolate; Vegetable Oil [palm Kernel Oil; Palm Oil]; Milk Fat; Lactose (milk); Contains 2% Or Less Of: Lecithin (soy); Pgpr; Vanillin, Artificial Flavor; Salt; Yeast; Baking Soda
Difference/similarity score (lower is better, 0.0 means nutrients are identical): 15.70
Kit Kat Crisp Wafers In Milk Chocolateolate Bars, Crisp Wafers by The Hershey Company

All Nutrients Per 100g (3.527 oz)
Calories 500.0kcal (-12.00kcal, -2.34%)
Total Fat26.19g (-1.72g, -6.16%)
Saturated Fat 16.67g (-1.93g, -10.38%)
Trans Fat 0.0g (=)
Cholesterol 12.0mg (=)
Sodium 71.0mg (+1.00mg, +1.43%)
Total Carbohydrates 66.67g (+1.55g, +2.38%)
Dietary Fiber 2.4g (+0.10g, +4.35%)
Sugars 52.38g (+1.22g, +2.38%)
Sugars, added N/A
Protein 7.14g (+0.16g, +2.29%)
Core Vitamins and Minerals
Vitamin A, IUN/A
Vitamin C, total ascorbic acidN/A
Calcium, Ca143.0mg (-8.00mg, -5.30%)
Iron, Fe2.62mg (+0.29mg, +12.45%)
Potassium, K286.0mg (-5.00mg, -1.72%)
Vitamin D, IUN/A
Ingredients
Sugar; Wheat Flour; Skim Milk; Cocoa Butter; Chocolate; Vegetable Oil [palm Kernel Oil, Palm Oil]; Milk Fat: Lactose (milk); Contains 2% Or Less Of: Lecithin (soy); Pgpr; Vanillin, Artificial Flavor; Salt; Yeast; Baking Soda
Difference/similarity score (lower is better, 0.0 means nutrients are identical): 15.72
Kit Kat Crisp Wafers In Milk Chocolateolate King Size Bars, Milk Chocolateolate by The Hershey Company

All Nutrients Per 100g (3.527 oz)
Calories 500.0kcal (-12.00kcal, -2.34%)
Total Fat26.19g (-1.72g, -6.16%)
Saturated Fat 16.67g (-1.93g, -10.38%)
Trans Fat 0.0g (=)
Cholesterol 12.0mg (=)
Sodium 71.0mg (+1.00mg, +1.43%)
Total Carbohydrates 66.67g (+1.55g, +2.38%)
Dietary Fiber 2.4g (+0.10g, +4.35%)
Sugars 50.0g (-1.16g, -2.27%)
Sugars, added N/A
Protein 7.14g (+0.16g, +2.29%)
Core Vitamins and Minerals
Vitamin A, IUN/A
Vitamin C, total ascorbic acidN/A
Calcium, Ca143.0mg (-8.00mg, -5.30%)
Iron, Fe2.62mg (+0.29mg, +12.45%)
Potassium, K286.0mg (-5.00mg, -1.72%)
Vitamin D, IUN/A
Other Nutrients
Vitamin D (D2 + D3)1.0ug
Ingredients
Sugar; Wheat Flour; Skim Milk; Cocoa Butter; Chocolate; Vegetable Oil [palm Kernel Oil; Palm Oil]; Milk Fat; Lactose (milk); Contains 2% Or Less Of: Lecithin (soy); Pgpr; Vanillin, Artificial Flavor; Salt; Yeast; Baking Soda
Difference/similarity score (lower is better, 0.0 means nutrients are identical): 17.20
Kitkat Crisp Wafers In Milk Chocolateolate by The Hershey Company

All Nutrients Per 100g (3.527 oz)
Calories 500.0kcal (-12.00kcal, -2.34%)
Total Fat25.0g (-2.91g, -10.43%)
Saturated Fat 17.86g (-0.74g, -3.98%)
Trans Fat 0.0g (=)
Cholesterol 18.0mg (+6.00mg, +50.00%)
Sodium 71.0mg (+1.00mg, +1.43%)
Total Carbohydrates 64.29g (-0.83g, -1.27%)
Dietary Fiber 3.6g (+1.30g, +56.52%)
Sugars 50.0g (-1.16g, -2.27%)
Sugars, added N/A
Protein 7.14g (+0.16g, +2.29%)
Core Vitamins and Minerals
Vitamin A, IUN/A
Vitamin C, total ascorbic acidN/A
Calcium, Ca143.0mg (-8.00mg, -5.30%)
Iron, Fe2.5mg (+0.17mg, +7.30%)
Potassium, K286.0mg (-5.00mg, -1.72%)
Vitamin D, IUN/A
Ingredients
Sugar; Wheat Flour; Skim Milk; Cocoa Butter; Chocolate; Vegetable Oil [palm Kernel Oil; Palm Oil]; Milk Fat; Lactose (milk); Contains 2% Or Less Of: Lecithin (soy); Pgpr; Vanillin, Artificial Flavor; Salt; Yeast; Baking Soda
Difference/similarity score (lower is better, 0.0 means nutrients are identical): 18.46
Kitkat Crisp Wafers In Milk Chocolateolate Miniatures, Milk Chocolateolate by The Hershey Company

All Nutrients Per 100g (3.527 oz)
Calories 500.0kcal (-12.00kcal, -2.34%)
Total Fat26.47g (-1.44g, -5.16%)
Saturated Fat 17.65g (-0.95g, -5.11%)
Trans Fat 0.0g (=)
Cholesterol 15.0mg (+3.00mg, +25.00%)
Sodium 74.0mg (+4.00mg, +5.71%)
Total Carbohydrates 64.71g (-0.41g, -0.63%)
Dietary Fiber 2.9g (+0.60g, +26.09%)
Sugars 50.0g (-1.16g, -2.27%)
Sugars, added N/A
Protein 5.88g (-1.10g, -15.76%)
Core Vitamins and Minerals
Vitamin A, IUN/A
Vitamin C, total ascorbic acidN/A
Calcium, Ca147.0mg (-4.00mg, -2.65%)
Iron, Fe2.65mg (+0.32mg, +13.73%)
Potassium, K279.0mg (-12.00mg, -4.12%)
Vitamin D, IUN/A
Ingredients
Sugar; Wheat Flour; Skim Milk; Cocoa Butter; Chocolate; Vegetable Oil [palm Kernel Oil; Palm Oil]; Milk Fat; Lactose (milk); Contains 2% Or Less Of: Lecithin (soy); Pgpr; Vanillin, Artificial Flavor; Salt; Yeast; Baking Soda
Difference/similarity score (lower is better, 0.0 means nutrients are identical): 18.46
Kit Kat Crisp Wafers In Milk Chocolateolate Miniatures, Milk Chocolateolate by The Hershey Company

All Nutrients Per 100g (3.527 oz)
Calories 500.0kcal (-12.00kcal, -2.34%)
Total Fat26.47g (-1.44g, -5.16%)
Saturated Fat 17.65g (-0.95g, -5.11%)
Trans Fat 0.0g (=)
Cholesterol 15.0mg (+3.00mg, +25.00%)
Sodium 74.0mg (+4.00mg, +5.71%)
Total Carbohydrates 64.71g (-0.41g, -0.63%)
Dietary Fiber 2.9g (+0.60g, +26.09%)
Sugars 50.0g (-1.16g, -2.27%)
Sugars, added N/A
Protein 5.88g (-1.10g, -15.76%)
Core Vitamins and Minerals
Vitamin A, IUN/A
Vitamin C, total ascorbic acidN/A
Calcium, Ca147.0mg (-4.00mg, -2.65%)
Iron, Fe2.65mg (+0.32mg, +13.73%)
Potassium, K279.0mg (-12.00mg, -4.12%)
Vitamin D, IUN/A
Ingredients
Sugar; Wheat Flour; Skim Milk; Cocoa Butter; Chocolate; Vegetable Oil [palm Kernel Oil; Palm Oil]; Milk Fat; Lactose (milk); Contains 2% Or Less Of: Lecithin (soy); Pgpr; Vanillin, Artificial Flavor; Salt; Yeast; Baking Soda
Difference/similarity score (lower is better, 0.0 means nutrients are identical): 18.46
Kitkat Crisp Wafers In Milk Chocolateolate, Milk Chocolateolate by The Hershey Company

All Nutrients Per 100g (3.527 oz)
Calories 500.0kcal (-12.00kcal, -2.34%)
Total Fat26.47g (-1.44g, -5.16%)
Saturated Fat 17.65g (-0.95g, -5.11%)
Trans Fat 0.0g (=)
Cholesterol 15.0mg (+3.00mg, +25.00%)
Sodium 74.0mg (+4.00mg, +5.71%)
Total Carbohydrates 64.71g (-0.41g, -0.63%)
Dietary Fiber 2.9g (+0.60g, +26.09%)
Sugars 50.0g (-1.16g, -2.27%)
Sugars, added N/A
Protein 5.88g (-1.10g, -15.76%)
Core Vitamins and Minerals
Vitamin A, IUN/A
Vitamin C, total ascorbic acidN/A
Calcium, Ca147.0mg (-4.00mg, -2.65%)
Iron, Fe2.65mg (+0.32mg, +13.73%)
Potassium, K279.0mg (-12.00mg, -4.12%)
Vitamin D, IUN/A
Ingredients
Sugar; Wheat Flour; Skim Milk; Cocoa Butter; Chocolate; Vegetable Oil [palm Kernel Oil; Palm Oil]; Milk Fat; Lactose (milk); Contains 2% Or Less Of: Lecithin (soy); Pgpr; Vanillin, Artificial Flavor; Salt; Yeast; Baking Soda
Difference/similarity score (lower is better, 0.0 means nutrients are identical): 19.17
Kitkat King Size Crisp Wafers In Milk Chocolateolate, Milk Chocolateolate by The Hershey Company

All Nutrients Per 100g (3.527 oz)
Calories 500.0kcal (-12.00kcal, -2.34%)
Total Fat25.0g (-2.91g, -10.43%)
Saturated Fat 18.75g (+0.15g, +0.81%)
Trans Fat 0.0g (=)
Cholesterol 16.0mg (+4.00mg, +33.33%)
Sodium 78.0mg (+8.00mg, +11.43%)
Total Carbohydrates 65.62g (+0.50g, +0.77%)
Dietary Fiber 3.1g (+0.80g, +34.78%)
Sugars 50.0g (-1.16g, -2.27%)
Sugars, added N/A
Protein 6.25g (-0.73g, -10.46%)
Core Vitamins and Minerals
Vitamin A, IUN/A
Vitamin C, total ascorbic acidN/A
Calcium, Ca156.0mg (+5.00mg, +3.31%)
Iron, Fe2.5mg (+0.17mg, +7.30%)
Potassium, K281.0mg (-10.00mg, -3.44%)
Vitamin D, IUN/A
Ingredients
Sugar: Wheat Flour: Skim Milk Cocoa Butter; Chocolate; Vegetable Oil [palm Kernel Oil; Palm Oil], Milk Fat; Lactose (milk); Contains 2% Or Less Of Lecithin (soy); Pgpr; Vanillin, Artificial Flavor, Salt: Yeast; Baking Soda
Difference/similarity score (lower is better, 0.0 means nutrients are identical): 19.17
Kitkat Crisp Wafers In Milk Chocolateolate, Chocolateolate Covered Strawberry by The Hershey Company

All Nutrients Per 100g (3.527 oz)
Calories 500.0kcal (-12.00kcal, -2.34%)
Total Fat25.0g (-2.91g, -10.43%)
Saturated Fat 18.75g (+0.15g, +0.81%)
Trans Fat 0.0g (=)
Cholesterol 16.0mg (+4.00mg, +33.33%)
Sodium 78.0mg (+8.00mg, +11.43%)
Total Carbohydrates 65.62g (+0.50g, +0.77%)
Dietary Fiber 3.1g (+0.80g, +34.78%)
Sugars 50.0g (-1.16g, -2.27%)
Sugars, added N/A
Protein 6.25g (-0.73g, -10.46%)
Core Vitamins and Minerals
Vitamin A, IUN/A
Vitamin C, total ascorbic acidN/A
Calcium, Ca156.0mg (+5.00mg, +3.31%)
Iron, Fe2.5mg (+0.17mg, +7.30%)
Potassium, K281.0mg (-10.00mg, -3.44%)
Vitamin D, IUN/A
Ingredients
Sugar; Wheat Flour; Skim Milk; Cocoa Butter; Chocolate; Vegetable Oil [palm Kernel Oil; Palm Oil]; Milk Fat; Lactose (milk); Contains 2% Or Less Of: Lecithin (soy); Natural Flavor And Artificial Flavor; Pgpr; Salt; Yeast; Baking Soda
Difference/similarity score (lower is better, 0.0 means nutrients are identical): 19.20
Kit Kat Crisp Wafers In Milk Chocolateolate, Milk Chocolateolate by The Hershey Company

All Nutrients Per 100g (3.527 oz)
Calories 500.0kcal (-12.00kcal, -2.34%)
Total Fat25.0g (-2.91g, -10.43%)
Saturated Fat 18.75g (+0.15g, +0.81%)
Trans Fat 0.0g (=)
Cholesterol 16.0mg (+4.00mg, +33.33%)
Sodium 78.0mg (+8.00mg, +11.43%)
Total Carbohydrates 65.62g (+0.50g, +0.77%)
Dietary Fiber 3.1g (+0.80g, +34.78%)
Sugars 50.0g (-1.16g, -2.27%)
Sugars, added N/A
Protein 6.25g (-0.73g, -10.46%)
Core Vitamins and Minerals
Vitamin A, IUN/A
Vitamin C, total ascorbic acidN/A
Calcium, Ca156.0mg (+5.00mg, +3.31%)
Iron, Fe2.5mg (+0.17mg, +7.30%)
Potassium, K281.0mg (-10.00mg, -3.44%)
Vitamin D, IUN/A
Other Nutrients
Vitamin D (D2 + D3)1.0ug
Ingredients
Sugar; Wheat Flour; Skim Milk; Cocoa Butter; Chocolate; Vegetable Oil [palm Kernel Oil; Palm Oil]; Milk Fat; Lactose (milk); Contains 2% Or Less Of: Lecithin (soy); Pgpr; Vanillin, Artificial Flavor; Salt; Yeast; Baking Soda
Difference/similarity score (lower is better, 0.0 means nutrients are identical): 20.62
Kitkat Crisp Wafers In Milk Chocolateolate by The Hershey Company

All Nutrients Per 100g (3.527 oz)
Calories 500.0kcal (-12.00kcal, -2.34%)
Total Fat26.47g (-1.44g, -5.16%)
Saturated Fat 17.65g (-0.95g, -5.11%)
Trans Fat 0.0g (=)
Cholesterol 15.0mg (+3.00mg, +25.00%)
Sodium 74.0mg (+4.00mg, +5.71%)
Total Carbohydrates 64.71g (-0.41g, -0.63%)
Dietary Fiber 2.9g (+0.60g, +26.09%)
Sugars 50.0g (-1.16g, -2.27%)
Sugars, added N/A
Protein 5.88g (-1.10g, -15.76%)
Core Vitamins and Minerals
Vitamin A, IUN/A
Vitamin C, total ascorbic acidN/A
Calcium, Ca141.0mg (-10.00mg, -6.62%)
Iron, Fe2.94mg (+0.61mg, +26.18%)
Potassium, K279.0mg (-12.00mg, -4.12%)
Vitamin D, IU0.0IU (=)
Ingredients
Sugar; Wheat Flour; Skim Milk; Cocoa Butter; Chocolate; Palm Kernel Oil; Milk Fat; Lactose (milk); Contains 2% Or Less Of: Lecithin (soy); Pgpr; Vanillin, Artificial Flavor; Salt; Yeast; Baking Soda
Difference/similarity score (lower is better, 0.0 means nutrients are identical): 21.99
Niagara Chocolates Almond Toffee Bar, Almond Toffee by Sweetworks Confections, Llc

All Nutrients Per 100g (3.527 oz)
Calories 500.0kcal (-12.00kcal, -2.34%)
Total Fat32.14g (+4.23g, +15.16%)
Saturated Fat 17.86g (-0.74g, -3.98%)
Trans Fat 0.0g (=)
Cholesterol 18.0mg (+6.00mg, +50.00%)
Sodium 71.0mg (+1.00mg, +1.43%)
Total Carbohydrates 60.71g (-4.41g, -6.77%)
Dietary Fiber 0.0g (-2.30g, -100.00%)
Sugars 57.14g (+5.98g, +11.69%)
Sugars, added N/A
Protein 7.14g (+0.16g, +2.29%)
Core Vitamins and Minerals
Vitamin A, IUN/A
Vitamin C, total ascorbic acidN/A
Calcium, Ca146.0mg (-5.00mg, -3.31%)
Iron, Fe0.0mg (-2.33mg, -100.00%)
Potassium, K300.0mg (+9.00mg, +3.09%)
Vitamin D, IU0.0IU (=)
Ingredients
Milk Chocolate (sugar, Cocoa Butter*,skim Milk Powder, Chocolate*, Butterfat [milk], Soy Lecithin, Natural Flavor), Toffee (sugar, Vegetable Oil [palm Oil, Sunflower Oil], Butter [milk], Almonds, Salt, Soy Lecithin, Chocolate*), Diced Almonds
Difference/similarity score (lower is better, 0.0 means nutrients are identical): 22.92
I Loooove Chocolate Hot Cocoa Melt by My Favorite Company, Inc

All Nutrients Per 100g (3.527 oz)
Calories 520.0kcal (+8.00kcal, +1.56%)
Total Fat28.0g (+0.09g, +0.32%)
Saturated Fat 18.0g (-0.60g, -3.23%)
Trans Fat 0.0g (=)
Cholesterol 20.0mg (+8.00mg, +66.67%)
Sodium 60.0mg (-10.00mg, -14.29%)
Total Carbohydrates 60.0g (-5.12g, -7.86%)
Dietary Fiber 0.0g (-2.30g, -100.00%)
Sugars 56.0g (+4.84g, +9.46%)
Sugars, added N/A
Protein 4.0g (-2.98g, -42.69%)
Core Vitamins and Minerals
Vitamin A, IUN/A
Vitamin C, total ascorbic acidN/A
Calcium, Ca160.0mg (+9.00mg, +5.96%)
Iron, Fe1.44mg (-0.89mg, -38.20%)
Potassium, K280.0mg (-11.00mg, -3.78%)
Vitamin D, IUN/A
Other Nutrients
Vitamin D (D2 + D3)0.0ug
Ingredients
Chocolate Ingredients: Sugar, Cocoa Butter, Whole Milk Powder, Cocoa Mass, Whey Powder, Emulsifiers (soy Lecithin & Polyglycerol Polyricinoleic Acid), Natural Vanilla Flavoring, Artificial Colors (fd&c Red 40 Lake, Blue 1 Lake, Yellow 5 Lake) Marshmallow Ingredients: Sugar, Glucose Syrup (corn), Water, Gelatin (from Beef), Sorbitol, Modified Corn Starch, Dextrose, Artificial Flavor, Tetrasodium Pyrophosphate