Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
1. Basic Product Profile
- Full IUPAC Name: cyanamide
- Aliases: Carbamonitrile, Amidocyanogen
- CAS Number: 420-04-2
- EINECS: 206-992-3
- Molecular Formula: CH2N2
- Molecular Weight: 42.04
- Chemical Classification: Nitrogen-containing active synthetic intermediate, plant growth regulator, pharmaceutical & pesticide raw material
- Core Advantages
Small molecule bifunctional reagent containing cyano and amino groups, high reactivity for cyclization, addition and condensation reactions. Key raw material for synthesizing guanidine, thiourea, imidazole, pyrimidine heterocyclic skeletons; also used as defoliant, dormancy breaking agent for fruit trees. Available in solid crystal and aqueous solution grades.
2. Physical & Chemical Properties
2.1 Physical Index
- Appearance: Colorless orthorhombic crystalline solid
- Odor: Slight pungent ammonia-like odor
- Solubility: Freely soluble in water, ethanol, methanol; soluble in acetone; slightly soluble in benzene, ether
- Melting Point: 44–46 °C
- Boiling Point: Decomposes before boiling
- Density: 1.282 g/cm3 (20 °C)
- Hygroscopy: Strongly hygroscopic, absorbs moisture rapidly in humid air
- Aqueous solution pH: Weakly acidic
2.2 Chemical Properties
- Dual reactive functional groups: Primary amino (-NH2) and cyano (-C≡N), easy tautomerization to carbodiimide
- Cyclization performance: Self-polymerizes under heating to form dicyandiamide; reacts with amines, aldehydes, thiols to construct nitrogen heterocycles
- Hydrolysis reaction: Slow hydrolysis in neutral water; accelerated under acid/alkali heating to generate urea, ammonia and carbon dioxide
- Salt formation: Reacts with inorganic acids to form stable cyanamide salts
- Acid & Alkali Stability: Stable in cold neutral environment; fast polymerization at pH >8 or under heating
- Thermal Stability: Polymerizes above 80 °C to produce dicyandiamide; high temperature complete decomposition
- Photostability: Gradually yellow under long-term light exposure
- Compatibility: Compatible with polar solvents; incompatible with strong alkali, oxidants, heavy metal salts
3. Main Application Fields
3.1 Pharmaceutical Intermediate (Core Usage)
Core building block for heterocyclic APIs: anticancer drugs, histamine antagonists, anti-ulcer agents, antiviral pyrimidine derivatives; raw material for guanidine salt bactericides.
3.2 Agrochemical Industry
- Fruit tree bud dormancy breaker for grape, peach, cherry to advance flowering;
- Crop defoliant and herbicide auxiliary;
- Synthesis precursor of fungicides and insecticides with guanidine structure.
3.3 Fine Chemical & Material Industry
- Raw material for producing dicyandiamide, melamine, guanidine hydrochloride;
- Curing agent for epoxy resin, crosslinking auxiliary for coatings and adhesives.
3.4 Electroplating & Water Treatment
Synthesis raw material for organic scale inhibitors and electroplating brighteners.
4. Quality Specification Table
| Test Item | Standard Index |
| CAS No. | 420-04-2 |
| Molecular Formula | CH2N2 |
| Molecular Weight | 42.04 |
| Appearance | Colorless crystal |
| HPLC Purity | Solid Grade ≥98.0%; Solution Grade 50% aqueous |
| Moisture Content (KF) | ≤0.30% |
| Dicyandiamide Impurity | ≤0.50% |
| Heavy Metals (Pb) | ≤10 ppm |
| Residue on Ignition | ≤0.10% |
| Bulk Package | 25kg PE lined fiber drum |
| Sample Package | 1kg / 5kg sealed moisture-proof plastic bucket |
| Storage Requirements | Hermetic cool dry warehouse ≤20℃; isolate humid air, alkaline substances and heat sources |
| Transportation Rule | Toxic irritant nitrogen intermediate; fully sealed moisture-proof packaging required during transit |
| Shelf Life | 12 months under intact sealed packaging |
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