Formycin B

间型霉素B

Also known as: 1,4-Dihydro-3-β-D-ribofuranosyl-7H-pyrazolo[4,3-d]pyrimidin-7-one, 7H-Pyrazolo[4,3-d]pyrimidin-7-one, 1,4-dihydro-3-β-D-ribofuranosyl-, Laurusin, Ohyamycin, (1S)-1,4-Anhydro-1-C-[1,4-dihydro-7-oxo-7H-pyrazolo[4,3-d]pyrimidin-3-yl]-D-ribitol, NSC 106486

Formycin B (CAS 13877-76-4) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C10H12N4O5 and a molecular weight of 268.22600 g/mol. It is also known as 1,4-Dihydro-3-β-D-ribofuranosyl-7H-pyrazolo[4,3-d]pyrimidin-7-one, 7H-Pyrazolo[4,3-d]pyrimidin-7-one, 1,4-dihydro-3-β-D-ribofuranosyl- and Laurusin. Key properties include a boiling point of 683.2ºC at 760mmHg, a density of 2.18g/cm3 and a flash point of 367ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
13877-76-4
Jingsj CID
J-1144132-6
Molecular Formula
C10H12N4O5
Chinese Name
间型霉素B
Molecular Weight
268.22600 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point683.2ºC at 760mmHg
Density2.18g/cm3
Flash Point367ºC

Frequently Asked Questions

What is the CAS number of Formycin B?

The CAS number of Formycin B is 13877-76-4.

What are the molecular formula and molecular weight of Formycin B?

Formycin B has molecular formula C10H12N4O5 and molecular weight 268.22600 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Formycin B (CAS 13877-76-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1144132-6 (accessed 2026-10-26).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.