8-bromo-7-(but-2-ynyl)-3-methyl-1H-purine-2,6(3H,7H)-dione
Also known as: 8-bromo-7-(but-2-yn-1-yl)-3-methyl-1H-purine-2,6(3H,7H)-dione, 8-bromo-7-(2-butyn-1-yl)-3-methylxanthine, 8-bromo-7-(2-butynyl)-3,7-dihydro-3-methyl-1H-purine-2,6-dione, 8-bromo-7-but-2-yn-1-yl-3-methyl-3,7-dihydro-1H-purine-2,6-dione, 3-methyl-7-(2-butyn-1-yl)-8-bromoxanthine, Linagliptin intermediate, 8-bromo-7-but-2-ynyl-3-methylpurine-2,6-dione, 1H-Purine-2,6-dione, 8-bromo-7-(2-butyn-1-yl)-3,7-dihydro-3-methyl-
8-bromo-7-(but-2-ynyl)-3-methyl-1H-purine-2,6(3H,7H)-dione (CAS 666816-98-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H9BrN4O2 and a molecular weight of 297.108 g/mol. Key properties include a melting point of 285 °C and a density of 1.7±0.1 g/cm3. It is listed by 1 supplier; request a quote for pricing. Record last updated Aug 21, 2026.
- CAS No.
- 666816-98-4
- Jingsj CID
- J-1040201-4
- Molecular Formula
- C10H9BrN4O2
- Molecular Weight
- 297.108 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to Order | - | - | CN China |
Physicochemical Properties
| Melting Point | 285 °C |
|---|---|
| Density | 1.7±0.1 g/cm3 |
| Exact Mass | 295.990875 |
| PSA | 72.68000 |
| LogP | 1.62 |
| Refractive Index | 1.694 |
Customs & Trade Information
| HS Code | 2933990090 |
|---|---|
| Summary | 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 8-bromo-7-(but-2-ynyl)-3-methyl-1H-purine-2,6(3H,7H)-dione?
The CAS number of 8-bromo-7-(but-2-ynyl)-3-methyl-1H-purine-2,6(3H,7H)-dione is 666816-98-4.
What are the molecular formula and molecular weight of 8-bromo-7-(but-2-ynyl)-3-methyl-1H-purine-2,6(3H,7H)-dione?
8-bromo-7-(but-2-ynyl)-3-methyl-1H-purine-2,6(3H,7H)-dione has molecular formula C10H9BrN4O2 and molecular weight 297.108 g/mol.
Which suppliers offer 8-bromo-7-(but-2-ynyl)-3-methyl-1H-purine-2,6(3H,7H)-dione?
1 supplier(s) listed; request a quote for pricing.
What are the upstream and downstream products of 8-bromo-7-(but-2-ynyl)-3-methyl-1H-purine-2,6(3H,7H)-dione?
For 8-bromo-7-(but-2-ynyl)-3-methyl-1H-purine-2,6(3H,7H)-dione, Upstream Products: 8-Bromo-3-methylxanthine, 1-Bromo-2-butyne; Downstream Products: 8-Bromo-7-(but-2-yn-1-yl)-3-methyl-1-[(4-methylquinazolin-2-yl)methyl]-3,7-dihydro-1H-purine-2,6-dione.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "8-bromo-7-(but-2-ynyl)-3-methyl-1H-purine-2,6(3H,7H)-dione (CAS 666816-98-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1040201-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.