Maleic hydrazide
We are a manufacturer based in China. We specialize in providing high-quality Maleic hydrazide for industrial clients across various sectors. Whether you need chemicals consultation or technical support, our team is here to help.
Category：Agrochemicals Own Brand：MT /MOQ:100KG /From China/ B2B only.
Introduction
Maleic Hydrazide (CAS No. 123-33-1)
1. Basic Information
- Chemical Name: Maleic hydrazide
- Synonyms: 1,2-Dihydropyridazine-3,6-dione; MH
- CAS Number: 123-33-1
- Molecular Formula: C₄H₄N₂O₂
- Molecular Weight: 112.09 g/mol
- Appearance: White crystalline powder
- Odor: Odorless
2. Physical and Chemical Properties
| Property | Value |
|---|---|
| Melting Point | 260–265°C (decomposes) |
| Solubility | – Water: 6 g/L (25°C) |
| – Organic solvents: Insoluble in most (e.g., ethanol, acetone) | |
| pH (1% solution) | 5.5–7.0 |
| Vapor Pressure | Negligible (<0.1 mPa at 20°C) |
| Stability | Stable under normal conditions |
3. Chemical Structure
O
║
N---C
// \\
N C=O
\\ //
C---C
║
O
4. Hazards (GHS Classification)
- Acute Toxicity:
- Oral LD₅₀ (rat): >5,000 mg/kg (Category 5)
- Dermal LD₅₀ (rabbit): >2,000 mg/kg
- Environmental:
- Not classified as hazardous (EC₅₀ >100 mg/L for aquatic organisms)
- NFPA Rating: Health 1, Flammability 0, Reactivity 0
5. Storage and Handling
- Storage:
- Keep in tightly closed containers at room temperature
- Protect from moisture and direct sunlight
- Handling:
- Use standard lab PPE (gloves, goggles)
- Avoid dust formation
6. Applications
- Plant Growth Regulator:
- Inhibits sprouting in potatoes, onions, and tobacco
- Applied at 10–50 ppm in agriculture
- Herbicide: Controls grasses and weeds in non-crop areas
- Research: Used to study cell division inhibition in plants
Disclaimer:
The above content is for reference and communication only among industry insiders, and does not guarantee its accuracy or completeness. According to relevant laws and regulations and the regulations of this website, units or individuals who purchase related items should obtain valid qualifications and qualification conditions.
If you're ready to take the next step, Leave your message below and we’ll reply soon. 20+ years of chemical manufacturing & export experience, a partner you can trust.
Inquiry
Factory & Shipment
