2,4-Diamino Pyrimidine-3-oxide CAS 74638-76-9
Product:2,4-Diamino pyrimidine-3-oxide;Aminexil;Kopexil
CAS NO.:74638-76-9
Molecular formula:C4H6N4O
Purity & Grade: 99% HPLC; Food grade
MOQ & Package: 100g; Package according to demand
Shipping: Safe and fast delivery
Store & Shelf life: Cool & dry place; 36 months
Lead Time: about 3 days
Warehouse: USA and Germany warehouse
Certificate:COA; HPLC; MSDS; TDS,etc.
Description
What is Aminexil?
2,4-Diamino pyrimidine-3-oxide is a heterocyclic organic compound that can be used as a pharmaceutical intermediate and also in hair products. It has the effects of inhibiting hair loss, strengthening hair roots, and promoting hair growth.
Xi'an Faithful BioTech Co.,Ltd. is one of professional company specialized in research, development, custom manufacturing and trading of pharmaceutical API, advanced intermediates, food supplements, hookah additive flavors ,Cosmetic raw materials, health and cosmetic raw materials, polypeptides, animal drug and organic reagent etc.
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| Product name | 2,4-Diamino pyrimidine-3-oxide |
| CAS | 74638-76-9 |
| Molecular formula | C4H6N4O |
| Molecular weight | 126.12 |
| EINECS Number | 616-121-2 |
| melting point | NA |
| solubility | NA |
| Storage conditions | Room temperature, light shielded, dry and sealed storage |
| Appearance | white powder |
| boiling point | 475.5±37.0 °C |
| Density | 1.69±0.1 g/cm3 |
Product Specification
| Item | Specification | Results |
| Appearance | White powder | White powder |
| Identification | The retention time of the major peak of the assay | Conforms |
| preparation corresponds to that of the standard | Conforms | |
| preparation, as obtained in the assay. | Conforms | |
| Related Substances | Individual impurities≤0. 5% | 0. 12% |
| Total impurities≤1.0% | 0. 16% | |
| Water | ≤0.5% | 0.35% |
| Residue on Ignition | ≤0. 1% | 0.06% |
| Heavy Metals | ≤20ppm | 3ppm |
| Assay | ≥98% | 99.60% |
| Conclusion | Conform with enterprise specification | |
Where is Aminexil used?
2,4-Diamino pyrimidine-3-oxide is commonly used to prevent hair loss and solidification. It is a non hormonal anti stripping ingredient with a chemical structure similar to the hair growth ingredient minoxidil, but milder, more water-soluble, and less irritating, suitable for the daily maintenance needs of most people. It functions through two core mechanisms:
One is as an anti fibrotic agent, inhibiting the expression of lysyl hydroxylase, preventing collagen hardening around hair follicles, and protecting the growth environment of hair follicles;
The second is to prolong the growth period of hair follicles, by inhibiting hair follicle fibrosis, increasing the blood flow of blood vessels around the hair follicles, improving the supply of nutrients and oxygen around the hair follicles, while inhibiting hair follicle miniaturization, thereby prolonging the growth period of hair follicles and delaying their transition to the resting period. In addition, it can also stimulate the generation of keratin fibers that make up human hair, further helping to prevent hair loss and fixation.
What are the effects of Aminexil?

2,4-Diamino pyrimidine-3-oxide has various effects, as follows:
Application in hair products: Helps soften collagen and can be used to treat hair loss caused by premature loss of hair roots. It has the effects of inhibiting hair loss, strengthening hair roots, and promoting hair growth.
Application in biomedical field: As a fluorescent dye, it can be used to label DNA or RNA, and is used in experimental techniques such as nucleic acid hybridization and fluorescence microscopy. In addition, it can also be used as a photosensitive dye in organic optoelectronic devices, such as photoconductors and photovoltaic cells.
As a pharmaceutical intermediate: it is a heterocyclic organic compound that can be used as a pharmaceutical intermediate.
Specific usage should be based on actual needs and professional guidance.
How and where to buy Aminexil wholesale?
Our products undergo experimental testing and are recognized by customers.
You can trust our order because we have a good record of selling legal educational drugs.
Send your Inquiry for more details, Click email:sales2@faithfulbio.com Now.
Please contact me, I am Tina, a sales2 from Faithful. I will provide you with professional service to ensure your shopping experience is enjoyable and secure.





A variety of shipping methods for you to choose
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Shipping method |
Cargo weight requirements |
Advantage |
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3-7 days |
DHL, Germany DHL, Germany DPD, |
Suitable for under 50kg. |
We have warehouses in Germany and California, USA, |
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7-15 days |
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Suitable for more than 50kg. |
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15-60 days |
By Sea |
Suitable for more than 500kg. |
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FAQ:
Q1:What kind of packaging do you offer
A1:For powdered chemicals, we offer secure packaging options such as multi-layer kraft paper bags, woven bags, fiber drums, or bulk bags, all designed to prevent moisture, contamination, and leakage.
For liquid chemicals, we use high-grade containers including HDPE drums, IBC tanks, and ISO tankers that meet international safety and transport standards, ensuring reliable sealing and easy handling.
Q2:Why choose us?
A2:From raw material selection to production and processing, we adhere to international GMP standards to ensure precise control at every stage.
Q3: How is the quality of your product?
A3:Our products, with their high purity, high stability, and excellent compatibility
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Note: This compound is only used for laboratory research purposes. The US authorities have not evaluated these claims. Before use, please consult your doctor and learn about available research. This product is not intended for the diagnosis, treatment, cure, or prevention of any disease.
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