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[(2S,3S,4R,6S)-6-[(2R,3S,4R,5R,6S)-6-[[(4R,5S,6S,7R,9R,10Z,12E,14R,16R)-4-acetyloxy-14-hydroxy-5-methoxy-9,16-dimethyl-2-oxo-7-(2-oxoethyl)-1-oxacyclohexadeca-10,12-dien-6-yl]oxy]-4-(dimethylamino)-5-hydroxy-2-methyloxan-3-yl]oxy-4-hydroxy-2,4-dimethyloxan-3-yl] 3-methylbutanoate

Also known as: (13S)-9,?10-?Didehydro-?9-?deoxy-?10,?13-?dihydro-?13-?hydroxy-?3-?acetate 4B-?(3-?methylbutanoate)? Leucomycin V, Josamycin EP Impurity D (Isoleucomycin A3), Josamycin Impurity DQ: What is Josamycin Impurity D Q: What is the CAS Number of Josamycin Impurity D, Leucomycin V, 9,10-didehydro-9-deoxy-10,13-dihydro-13-hydroxy-, 3-acetate 4B-(3-methylbutanoate), (13S)-

[(2S,3S,4R,6S)-6-[(2R,3S,4R,5R,6S)-6-[[(4R,5S,6S,7R,9R,10Z,12E,14R,16R)-4-acetyloxy-14-hydroxy-5-methoxy-9,16-dimethyl-2-oxo-7-(2-oxoethyl)-1-oxacyclohexadeca-10,12-dien-6-yl]oxy]-4-(dimethylamino)-5-hydroxy-2-methyloxan-3-yl]oxy-4-hydroxy-2,4-dimethyloxan-3-yl] 3-methylbutanoate (CAS 22340-94-9) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C42H69NO15 and a molecular weight of 828.0 g/mol. It is also known as (13S)-9,?10-?Didehydro-?9-?deoxy-?10,?13-?dihydro-?13-?hydroxy-?3-?acetate 4B-?(3-?methylbutanoate)? Leucomycin V, Josamycin EP Impurity D (Isoleucomycin A3) and Josamycin Impurity DQ: What is Josamycin Impurity D Q: What is the CAS Number of Josamycin Impurity D. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
22340-94-9
Jingsj CID
J-1739520-7
Molecular Formula
C42H69NO15
Molecular Weight
828.0 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Frequently Asked Questions

What is the CAS number of [(2S,3S,4R,6S)-6-[(2R,3S,4R,5R,6S)-6-[[(4R,5S,6S,7R,9R,10Z,12E,14R,16R)-4-acetyloxy-14-hydroxy-5-methoxy-9,16-dimethyl-2-oxo-7-(2-oxoethyl)-1-oxacyclohexadeca-10,12-dien-6-yl]oxy]-4-(dimethylamino)-5-hydroxy-2-methyloxan-3-yl]oxy-4-hydroxy-2,4-dimethyloxan-3-yl] 3-methylbutanoate?

The CAS number of [(2S,3S,4R,6S)-6-[(2R,3S,4R,5R,6S)-6-[[(4R,5S,6S,7R,9R,10Z,12E,14R,16R)-4-acetyloxy-14-hydroxy-5-methoxy-9,16-dimethyl-2-oxo-7-(2-oxoethyl)-1-oxacyclohexadeca-10,12-dien-6-yl]oxy]-4-(dimethylamino)-5-hydroxy-2-methyloxan-3-yl]oxy-4-hydroxy-2,4-dimethyloxan-3-yl] 3-methylbutanoate is 22340-94-9.

What are the molecular formula and molecular weight of [(2S,3S,4R,6S)-6-[(2R,3S,4R,5R,6S)-6-[[(4R,5S,6S,7R,9R,10Z,12E,14R,16R)-4-acetyloxy-14-hydroxy-5-methoxy-9,16-dimethyl-2-oxo-7-(2-oxoethyl)-1-oxacyclohexadeca-10,12-dien-6-yl]oxy]-4-(dimethylamino)-5-hydroxy-2-methyloxan-3-yl]oxy-4-hydroxy-2,4-dimethyloxan-3-yl] 3-methylbutanoate?

[(2S,3S,4R,6S)-6-[(2R,3S,4R,5R,6S)-6-[[(4R,5S,6S,7R,9R,10Z,12E,14R,16R)-4-acetyloxy-14-hydroxy-5-methoxy-9,16-dimethyl-2-oxo-7-(2-oxoethyl)-1-oxacyclohexadeca-10,12-dien-6-yl]oxy]-4-(dimethylamino)-5-hydroxy-2-methyloxan-3-yl]oxy-4-hydroxy-2,4-dimethyloxan-3-yl] 3-methylbutanoate has molecular formula C42H69NO15 and molecular weight 828.0 g/mol.

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

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How to cite: Jingsj. "[(2S,3S,4R,6S)-6-[(2R,3S,4R,5R,6S)-6-[[(4R,5S,6S,7R,9R,10Z,12E,14R,16R)-4-acetyloxy-14-hydroxy-5-methoxy-9,16-dimethyl-2-oxo-7-(2-oxoethyl)-1-oxacyclohexadeca-10,12-dien-6-yl]oxy]-4-(dimethylamino)-5-hydroxy-2-methyloxan-3-yl]oxy-4-hydroxy-2,4-dimethyloxan-3-yl] 3-methylbutanoate (CAS 22340-94-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1739520-7 (accessed 2026-10-27).

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