diff --git a/src/data/bedrock/CompoundTypeIds.php b/src/data/bedrock/CompoundTypeIds.php
new file mode 100644
index 000000000..c4343a98f
--- /dev/null
+++ b/src/data/bedrock/CompoundTypeIds.php
@@ -0,0 +1,65 @@
+<?php
+
+/*
+ *
+ *  ____            _        _   __  __ _                  __  __ ____
+ * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
+ * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
+ * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
+ * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * @author PocketMine Team
+ * @link http://www.pocketmine.net/
+ *
+ *
+*/
+
+declare(strict_types=1);
+
+namespace pocketmine\data\bedrock;
+
+final class CompoundTypeIds{
+	public const SALT = 0;
+	public const SODIUM_OXIDE = 1;
+	public const SODIUM_HYDROXIDE = 2;
+	public const MAGNESIUM_NITRATE = 3;
+	public const IRON_SULPHIDE = 4;
+	public const LITHIUM_HYDRIDE = 5;
+	public const SODIUM_HYDRIDE = 6;
+	public const CALCIUM_BROMIDE = 7;
+	public const MAGNESIUM_OXIDE = 8;
+	public const SODIUM_ACETATE = 9;
+	public const LUMINOL = 10;
+	public const CHARCOAL = 11;
+	public const SUGAR = 12;
+	public const ALUMINIUM_OXIDE = 13;
+	public const BORON_TRIOXIDE = 14;
+	public const SOAP = 15;
+	public const POLYETHYLENE = 16;
+	public const RUBBISH = 17;
+	public const MAGNESIUM_SALTS = 18;
+	public const SULPHATE = 19;
+	public const BARIUM_SULPHATE = 20;
+	public const POTASSIUM_CHLORIDE = 21;
+	public const MERCURIC_CHLORIDE = 22;
+	public const CERIUM_CHLORIDE = 23;
+	public const TUNGSTEN_CHLORIDE = 24;
+	public const CALCIUM_CHLORIDE = 25;
+	public const WATER = 26;
+	public const GLUE = 27;
+	public const HYPOCHLORITE = 28;
+	public const CRUDE_OIL = 29;
+	public const LATEX = 30;
+	public const POTASSIUM_IODIDE = 31;
+	public const SODIUM_FLUORIDE = 32;
+	public const BENZENE = 33;
+	public const INK = 34;
+	public const HYDROGEN_PEROXIDE = 35;
+	public const AMMONIA = 36;
+	public const SODIUM_HYPOCHLORITE = 37;
+}
diff --git a/src/item/ItemFactory.php b/src/item/ItemFactory.php
index dbceea1b0..c38268c41 100644
--- a/src/item/ItemFactory.php
+++ b/src/item/ItemFactory.php
@@ -31,6 +31,7 @@ use pocketmine\block\utils\RecordType;
 use pocketmine\block\utils\SkullType;
 use pocketmine\block\utils\TreeType;
 use pocketmine\block\VanillaBlocks;
+use pocketmine\data\bedrock\CompoundTypeIds;
 use pocketmine\data\bedrock\DyeColorIdMap;
 use pocketmine\data\bedrock\EntityLegacyIds;
 use pocketmine\data\bedrock\PotionTypeIdMap;
@@ -112,44 +113,44 @@ class ItemFactory{
 		$this->register(new Item(new ItemIdentifier(ItemIds::BRICK, 0), "Brick"));
 		$this->register(new Item(new ItemIdentifier(ItemIds::CHORUS_FRUIT_POPPED, 0), "Popped Chorus Fruit"));
 		$this->register(new Item(new ItemIdentifier(ItemIds::CLAY_BALL, 0), "Clay"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 0), "Salt"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 1), "Sodium Oxide"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 2), "Sodium Hydroxide"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 3), "Magnesium Nitrate"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 4), "Iron Sulphide"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 5), "Lithium Hydride"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 6), "Sodium Hydride"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 7), "Calcium Bromide"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 8), "Magnesium Oxide"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 9), "Sodium Acetate"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 10), "Luminol"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 11), "Charcoal")); //??? maybe bug
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 12), "Sugar")); //??? maybe bug
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 13), "Aluminium Oxide"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 14), "Boron Trioxide"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 15), "Soap"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 16), "Polyethylene"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 17), "Rubbish"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 18), "Magnesium Salts"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 19), "Sulphate"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 20), "Barium Sulphate"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 21), "Potassium Chloride"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 22), "Mercuric Chloride"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 23), "Cerium Chloride"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 24), "Tungsten Chloride"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 25), "Calcium Chloride"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 26), "Water")); //???
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 27), "Glue"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 28), "Hypochlorite"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 29), "Crude Oil"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 30), "Latex"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 31), "Potassium Iodide"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 32), "Sodium Fluoride"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 33), "Benzene"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 34), "Ink"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 35), "Hydrogen Peroxide"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 36), "Ammonia"));
-		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, 37), "Sodium Hypochlorite"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::SALT), "Salt"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::SODIUM_OXIDE), "Sodium Oxide"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::SODIUM_HYDROXIDE), "Sodium Hydroxide"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::MAGNESIUM_NITRATE), "Magnesium Nitrate"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::IRON_SULPHIDE), "Iron Sulphide"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::LITHIUM_HYDRIDE), "Lithium Hydride"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::SODIUM_HYDRIDE), "Sodium Hydride"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::CALCIUM_BROMIDE), "Calcium Bromide"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::MAGNESIUM_OXIDE), "Magnesium Oxide"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::SODIUM_ACETATE), "Sodium Acetate"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::LUMINOL), "Luminol"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::CHARCOAL), "Charcoal")); //??? maybe bug
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::SUGAR), "Sugar")); //??? maybe bug
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::ALUMINIUM_OXIDE), "Aluminium Oxide"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::BORON_TRIOXIDE), "Boron Trioxide"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::SOAP), "Soap"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::POLYETHYLENE), "Polyethylene"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::RUBBISH), "Rubbish"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::MAGNESIUM_SALTS), "Magnesium Salts"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::SULPHATE), "Sulphate"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::BARIUM_SULPHATE), "Barium Sulphate"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::POTASSIUM_CHLORIDE), "Potassium Chloride"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::MERCURIC_CHLORIDE), "Mercuric Chloride"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::CERIUM_CHLORIDE), "Cerium Chloride"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::TUNGSTEN_CHLORIDE), "Tungsten Chloride"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::CALCIUM_CHLORIDE), "Calcium Chloride"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::WATER), "Water")); //???
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::GLUE), "Glue"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::HYPOCHLORITE), "Hypochlorite"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::CRUDE_OIL), "Crude Oil"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::LATEX), "Latex"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::POTASSIUM_IODIDE), "Potassium Iodide"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::SODIUM_FLUORIDE), "Sodium Fluoride"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::BENZENE), "Benzene"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::INK), "Ink"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::HYDROGEN_PEROXIDE), "Hydrogen Peroxide"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::AMMONIA), "Ammonia"));
+		$this->register(new Item(new ItemIdentifier(ItemIds::COMPOUND, CompoundTypeIds::SODIUM_HYPOCHLORITE), "Sodium Hypochlorite"));
 		$this->register(new Item(new ItemIdentifier(ItemIds::DIAMOND, 0), "Diamond"));
 		$this->register(new Item(new ItemIdentifier(ItemIds::DRAGON_BREATH, 0), "Dragon's Breath"));
 		$this->register(new Item(new ItemIdentifier(ItemIds::DYE, 0), "Ink Sac"));