What is the Cyromazine 98%?
Cyromazine 98% is an insect growth regulator (IGR) primarily used to control Dipteran pests, such as leafminers and fly larvae.
It works by interfering with the molting and pupation processes of insects, causing abnormal larval or pupal development and thereby preventing successful emergence of adult flies.
| Product Name | Cyromazine 98% |
| Appereance | White Fine powder |
| CAS | 66215-27-8 |
| Specification | 99% |
| Molecular Formula | C6H10N6 |
| Molecular Weight | 166.18 g/mol |
| Packaging | 1000 g/bag × 20 bags/carton, 25 kg/carton |

Quality control
| Item | Standard Specification | Test Result | Conclusion |
| Description | This product shall be white or off-white crystalline powder; odorless or almost odorless. Slightly soluble in water, sparingly soluble in methanol, practically insoluble in toluene or n-hexane. | The product is white crystalline powder, odorless; slightly soluble in water, sparingly soluble in methanol, practically insoluble in toluene and n-hexane. | Complies |
| Melting Point | Melting point shall be 219~226℃ | 221~222℃ | Complies |
| Identification | |||
| (1) | The retention time of the principal peak of the test sample shall be consistent with that of the reference sample. | The retention time of the principal peak of the test sample is consistent with that of the reference sample. | Complies |
| (2) | The infrared absorption spectrum of this product shall be consistent with the reference spectrum. | The infrared absorption spectrum of this product is consistent with the reference spectrum. | Complies |
| Tests | |||
| Residue on Ignition | Not more than 0.2% | 0.14% | Complies |
| Water Content | Not more than 1.0% | 0.3% | Complies |
| Related Substances |
Impurity A ≤ 0.5% Impurity B ≤ 0.5% Impurity C ≤ 0.5% Impurity D ≤ 1.0% Impurity E ≤ 0.5% Any other single impurity ≤ 0.5% Total impurities ≤ 1.5% |
Impurity A: Not detected ImpurityB: Not detected ImpurityC: Not detected Impurity D: 0.22% Impurity E: Not detected Any other single impurity: 0.23% Total impurities: 0.5% |
Complies |
| Assay | Calculated on anhydrous basis, the content of C₁₅H₂₀N₃ shall be not less than 98.0% | 98.5% | Complies |
| Overall Conclusion | - | This product complies with the specification when tested in accordance with Veterinary Drug Quality Standard | - |
What is the Pharmacological Action of Cyromazine 98%?
Cyromazine is an insect growth regulator that inhibits molting in Dipteran larvae, particularly during the first instar stage. By disrupting the molting process, it interferes with maggot development and reproduction, and may cause larvae to die due to failure to shed their exoskeleton.
When administered orally to poultry, even very low concentrations excreted in the manure are sufficient to effectively eliminate fly larvae. The onset of action generally occurs within 6–24 hours after administration and can last for 1–3 weeks.
After oral administration in chickens, absorption is minimal; the compound is largely excreted unchanged in the feces. It is considered safe for humans, livestock, and natural predators of flies, and does not adversely affect animal growth, egg production, or reproduction.
What is the Directions for Use of Cyromazine 98%?
Feed Mixing
Laying hens or broilers: Add 100–200 g per metric ton of complete feed.
Pigs, sheep, or cattle: Add 200–300 g per metric ton of feed.
Mix thoroughly. Begin administration at the start of fly season. Feed continuously for 4–6 weeks, then discontinue for 1–2 weeks, followed by another 4–6 weeks of feeding. Repeat this cycle until the end of fly season.
Water Administration
Add 100 g per metric ton of drinking water. Provide continuously for 4–6 weeks.
Spraying Application
Dissolve 50 g of the product in 15 L of water. Spray over approximately 20 square meters of accumulated manure. Repeat every 2 weeks as needed.
Concentrated Spray Application
Dissolve 50 g of the product in 5 L of water. Apply to approximately 20 square meters of manure accumulation. Repeat every 2 weeks.
Packaging Specifications
1000 g/bag × 20 bags/carton
25 kg/carton
Why choose us?

Quality Assurance
Third-Party Lab Testing: Each batch of Cyromazine 98% comes with COA and heavy metal testing.
fast shipping
To ensure that customers receive their goods smoothly,we supply all kinds of couriers according to different needs.Like DHL, FedEx, UPS, EMS, TNT, by Sea, by Air.

FAQ
Q: What is Cyromazine 98%?
A: Cyromazine is a triazine-based insect growth regulator (IGR) widely used in agriculture and livestock industries. It effectively prevents the development of fly larvae, protecting crops and animals from pest damage while reducing the need for harsh chemical pesticides.
Q: How does Cyromazine 98% work?
A: Cyromazine targets the growth and development of insect larvae:
- Inhibits molting in dipteran larvae (e.g., houseflies, blowflies)
- Prevents larval maturation, reducing adult fly populations
- Breaks the reproductive cycle, limiting pest outbreaks
- Safe for adult insects, plants, and animals when used as directed
This makes it a highly selective, effective, and environmentally friendly solution for pest control.
Q: What are the main benefits of Cyromazine 98%?
A: Effective Fly Control: Reduces larvae development in livestock and poultry environments
Environmentally Friendly: Low toxicity to mammals and plants
Reduces Disease Risk: Minimizes fly-borne pathogen spread in farms
Cost-Effective Pest Management: Reduces the need for repeated adulticide spraying
Research-Grade Compound: Suitable for entomology and agricultural studies
Q: What industries use Cyromazine 98%?
A: Livestock and poultry farming: Prevent fly infestations in barns and coops
Agriculture: Protect crops from leaf miners and dipteran pests
Research labs: Study insect growth regulation and pest biology
Veterinary pest management: Reduce fly-borne disease risk
If you want to buy Cyromazine 98%, pls feel free to contact Xi'an Ruichi Biotech Co., Ltd.
Protect your livestock, crops, and research environments with Cyromazine – a high-purity, research-grade insect growth regulator for sustainable and effective pest control.
E-mail: Jenny@ruichibio.com
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