CAS No.: 79-09-4
Molecular Formula: CH3CH2COOH
Molecular Weight: 74.08

Iupac Name：disodium;carbonate
CAS No.: 497-19-8
Molecular Weight：105.988
Sodium carbonate (CNa2O3) is an inorganic compound belonging to the class of carbonate salts. At room temperature, it exists as a white, odorless solid that typically appears in powder or granular form. It is commonly encountered in a highly crystalline state and may exhibit hygroscopic properties under ambient conditions.

Iupac Name：dioxosilane
CAS No.: 7631-86-9
Molecular Weight：60.0843
Introduction:
Silicon Dioxide (SiO₂) is an inorganic compound. It is a crystalline solid at room temperature, typically appearing as a colorless, odorless substance. In its most common form, silicon dioxide exhibits a transparent to translucent

Formic acid
CAS No.：64-18-6
Molecular formula: CH2O2
Molecular weight: 46.02538

Iupac Name：sodium;formate
CAS No.: 141-53-7
Molecular Weight：68.01
Sodium formate (CHNaO2) is a sodium salt of formic acid and is best classified as an inorganic compound with organic functionality, specifically a carboxylic acid derivative. At room temperature, sodium formate typically exists as a white crystalline solid with a slight acetate-like odor. It is hygroscopic in nature and readily soluble in water, forming a clear, colorless solution upon dissolution.

Iupac Name：azanium;chloride
CAS No.: 12125-02-9
Molecular Weight：53.489
Introduction:
Ammonium chloride (ClH4N) is an inorganic ionic compound. It appears as a white crystalline solid at room temperature, is odorless, and typically forms fine granules or powder. The compound is highly soluble in water, forming a colorless solution, and exhibits hygroscopic properties, meaning it can absorb moisture from the surrounding environment. As an ammonium salt of hydrochloric acid, it belongs to the class of inorganic salts and is widely used in various industrial and scientific applications.

Iupac Name：calcium;dichloride
CAS No.: 10043-52-4
Molecular Weight：110.984
Introduction:
Calcium chloride (CaCl2) is an inorganic ionic compound. At room temperature, it exists as a white crystalline solid with a hygroscopic nature and is generally odorless. The compound readily absorbs moisture from the surrounding environment, which often leads to clumping or dissolution if left exposed to ambient air. Calcium chloride is highly soluble in water, and its dissolution is exothermic, releasing a significant amount of heat.

Iupac Name：aluminum;trisodium;hexafluoride
CAS No.: 15096-52-3
Molecular Weight：209.94100
Introduction:
Cryolite (Na3AlF6) is an inorganic mineral compound and a fluorinated coordination compound, featuring an octahedral [AlF6]3− anion coordinated to sodium cations. At room temperature, it appears as a white to colorless, crystalline solid with a vitreous luster; it is odorless and non-volatile.

Iupac Name：sodium;4-amino-5-hydroxy-5-oxopentanoate
CAS No.: 32221-81-1
Molecular Weight：169.11109
Introduction:
L-Glutamic Acid Monosodium Salt Monohydrate (C5H8NNaO4) is a biochemical compound and carboxylic acid derivative. At room temperature, it exists as a white to off-white crystalline powder, odorless with a characteristic savory or umami taste. It is highly soluble in water but insoluble in organic solvents such as ethanol and ether, reflecting its polar ionic nature due to the presence of both carboxylate and ammonium functional groups.

Iupac Name：propane-1,2,3-triol
CAS No.: 56-81-5
Molecular Weight：92.09382
Introduction:
Glycerol (C3H8O3) is a biochemical compound and more specifically a polyol (alcohol sugar). It is an odorless, colorless, viscous liquid at room temperature, exhibiting a slightly sweet taste. Due to its hygroscopic nature, glycerol readily absorbs moisture from the environment and is completely miscible with water and alcohol, while being only slightly soluble in acetone and ether. This compound is non-volatile and possesses a high boiling point relative to its molecular weight, which contributes to its stability and utility in various applications.

Iupac Name：(2S)-2-amino-3-(1H-indol-3-yl)propanoic acid
CAS No.: 73-22-3
Molecular Weight：204.22518
Introduction:
L-Tryptophan (C11H12N2O2) is a biochemical compound and a specific type of amino acid derivative. It is an essential α-amino acid containing an indole functional group, making it a key precursor in the biosynthesis of neurotransmitters such as serotonin and melatonin. At room temperature, L-tryptophan typically appears as a white to off-white crystalline solid, is odorless, and exhibits limited solubility in water, although its solubility increases in acidic or basic environments.

Iupac Name：2-hydroxypropane-1,2,3-tricarboxylic acid
CAS No.: 77-92-9
Molecular Weight：192.12352
Introduction:
Citric acid (C6H8O7) is a tricarboxylic acid and a key intermediate in the citric acid cycle, a central metabolic pathway in living organisms. At room temperature, citric acid typically exists as a white crystalline solid, often encountered in its monohydrate form. It is odorless and possesses a strong acidic taste, which contributes to its widespread use as a flavoring and preservative agent. As a carboxylic acid derivative and a biochemical compound, citric acid plays essential roles in both biological systems and industrial applications.

Iupac Name：acetic acid;2,3,4,5,6-pentahydroxyhexanal
CAS No.: 9000-11-7
Molecular Weight：240.20784
Introduction:
Carboxymethyl cellulose (C8H16O8) is a carboxylic acid derivative and biochemical compound. At room temperature, it appears as a white or slightly yellowish powder with no noticeable odor. Carboxymethyl cellulose, commonly referred to as CMC, is a water-soluble polymer derived from cellulose. Its structure consists of cellulose chains modified by the introduction of carboxymethyl groups, which impart unique properties such as viscosity modulation and emulsification. As a biochemical compound, it plays a crucial role in various industries due to its biocompatibility and ability to form stable gels or solutions.

Iupac Name：N,N-dimethylformamide
CAS No.: 68-12-2
Molecular Weight：73.09378
Introduction:
N,N-Dimethylformamide (C3H7NO) is a polar aprotic solvent and carboxylic acid derivative, specifically the dimethylamide of formic acid. At room temperature, it is a colorless to pale yellow liquid with a faint, characteristic odor often described as faintly fishy or chloroform-like; it is miscible with water and most common organic solvents.

Iupac Name：acetic acid
CAS No.: 64-19-7
Molecular Weight：60.05196
Introduction:
Acetic acid (C2H4O2) is a carboxylic acid, one of the simplest organic compounds bearing a carboxyl functional group. At room temperature, it exists as a colorless liquid with a pungent, vinegar-like odor, which is easily recognizable even at low concentrations. Pure acetic acid, also known as glacial acetic acid, has a viscous consistency and can solidify into ice-like crystals below 16.7 °C. As a weak acid, it partially dissociates in aqueous solution, contributing to its widespread use in both industrial and biological contexts.