Myriocin

Also known as: Thermozymocidin, Myriocin from Mycelia sterilia, ISP-1, ISP-I, (2S,3R,4R,6E)-2-Amino-3,4-dihydroxy-2-(hydroxymethyl)-14-oxo-6-icosenoic acid, (E,2S,3R,4R)-2-amino-3,4-dihydroxy-2-(hydroxymethyl)-14-oxoicos-6-enoic acid, 2-[(1R,2R,4E)-1,2-Dihydroxy-12-oxo-4-octadecen-1-yl]-D-serine, antibiotic ISP-I

Myriocin (CAS 35891-70-4) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C21H39NO6 and a molecular weight of 401.538 g/mol. Key properties include a boiling point of 636.7±55.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 338.8±31.5 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 35891-70-4
Jingsj CID: J-1377642-6
Molecular Formula: C₂₁H₃₉NO₆
Molecular Weight: 401.538 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	636.7±55.0 °C at 760 mmHg
Density	1.1±0.1 g/cm3
Flash Point	338.8±31.5 °C
Exact Mass	401.277740
PSA	141.08000
LogP	4.21
Vapor Pressure	0.0±4.3 mmHg at 25°C
Refractive Index	1.522
Storage Conditions	-20℃

GHS Safety & Compliance

Acute ToxicitySignal word: Danger

H301 — Toxic if swallowed

Activity & Biological Data

Target	Serine-palmitoyl-transferase (SPT)[1]
Additional Information	[1]. He Q, et al. Inhibition of serine palmitoyltransferase by myriocin, a natural mycotoxin, causes inductionof c-myc in mouse liver. Mycopathologia. 2004 Apr;157(3):339-47. [2]. Amemiya F, et al. Targeting lipid metabolism in the treatment of hepatitis C virus infection. J Infect Dis. 2008 Feb 1;197(3):361-70. [3]. Ciesek S, et al. The suppressive effect that myriocin has on hepatitis C virus RNA replication is independent of inhibition of serine palmitoyl transferase. J Infect Dis. 2008 Oct 1;198(7):1091-3.

Target

Serine-palmitoyl-transferase (SPT)[1]

Additional Information

[1]. He Q, et al. Inhibition of serine palmitoyltransferase by myriocin, a natural mycotoxin, causes inductionof c-myc in mouse liver. Mycopathologia. 2004 Apr;157(3):339-47. [2]. Amemiya F, et al. Targeting lipid metabolism in the treatment of hepatitis C virus infection. J Infect Dis. 2008 Feb 1;197(3):361-70. [3]. Ciesek S, et al. The suppressive effect that myriocin has on hepatitis C virus RNA replication is independent of inhibition of serine palmitoyl transferase. J Infect Dis. 2008 Oct 1;198(7):1091-3.

Frequently Asked Questions

What is the CAS number of Myriocin?

The CAS number of Myriocin is 35891-70-4.

What are the molecular formula and molecular weight of Myriocin?

Myriocin has molecular formula C21H39NO6 and molecular weight 401.538 g/mol.

Is Myriocin hazardous?

Myriocin has GHS signal word Danger and hazard statements H301 — Toxic if swallowed.

What are the upstream and downstream products of Myriocin?

For Myriocin, Upstream Products: N-Methoxy-N-methylheptanamide, Heptanoyl chloride.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Myriocin (CAS 35891-70-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1377642-6 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.