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  • Brand : BIOFRON

  • Catalogue Number : BN-O1250

  • Specification : 98%(HPLC)

  • CAS number : 138402-11-6

  • Formula : C25H28N6O

  • Molecular Weight : 428.53

  • PUBCHEM ID : 3749

  • Volume : 5mg

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Catalogue Number


Analysis Method





Molecular Weight




Botanical Source

Structure Type





2-Butyl-3-{[2'-(1H-tetrazol-5-yl)-4-biphenylyl]methyl}-1,3-diazaspiro[4.4]non-1-en-4-one/Irbesartan/3-((2'-(1H-Tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-2-butyl-1,3-diazaspiro[4.4]non-1-en-4-one/3-Butyl-2-[[4-[2-(2H-tetrazol-5-yl)phenyl]phenyl]methyl]-2,4-diazaspiro[4.4]non-3-en-1-one/1,3-Diazaspiro[4.4]non-1-en-4-one, 2-butyl-3-[[2'-(1H-tetrazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-/2-Butyl-3-[[2'-(2H-tetrazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-1,3-diazaspiro[4.4]non-1-en-4-one/2-Butyl-3-(p-(o-1H-tetrazol-5-ylphenyl)benzyl)-1,3-diazaspiro[4.4]non-1-en-4-one/1,3-diazaspiro4.4non-1-en-4-one, 2-butyl-3-2'-(1H-tetrazol-5-yl)1,1'-biphenyl-4-ylmethyl-/2-butyl-3-{[2'-(1H-tetrazol-5-yl)biphenyl-4-yl]methyl}-1,3-diazaspiro[4.4]non-1-en-4-one/Avapro



1.3±0.1 g/cm3


Flash Point

346.0±34.3 °C

Boiling Point

648.6±65.0 °C at 760 mmHg

Melting Point



InChl Key


WGK Germany


HS Code Reference

Personal Projective Equipment

Correct Usage

For Reference Standard and R&D, Not for Human Use Directly.

Meta Tag

provides coniferyl ferulate(CAS#:138402-11-6) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Articles of coniferyl ferulate are included as well.>> amp version: coniferyl ferulate

No Technical Documents Available For This Product.




Angiotensin-II receptor blockade in Marfan syndrome.


MuiNo-Mosquera L, De Backer J.

Publish date

2020 Dec 21




Irbesartan, a long acting selective angiotensin-1 receptor inhibitor, in Marfan syndrome might reduce aortic dilatation, which is associated with dissection and rupture. We aimed to determine the effects of irbesartan on the rate of aortic dilatation in children and adults with Marfan syndrome.

We did a placebo-controlled, double-blind randomised trial at 22 centres in the UK. Individuals aged 6-40 years with clinically confirmed Marfan syndrome were eligible for inclusion. Study participants were all given 75 mg open label irbesartan once daily, then randomly assigned to 150 mg of irbesartan (increased to 300 mg as tolerated) or matching placebo. Aortic diameter was measured by echocardiography at baseline and then annually. All images were analysed by a core laboratory blinded to treatment allocation. The primary endpoint was the rate of aortic root dilatation. This trial is registered with ISRCTN, number ISRCTN90011794.

Between March 14, 2012, and May 1, 2015, 192 participants were recruited and randomly assigned to irbesartan (n=104) or placebo (n=88), and all were followed for up to 5 years. Median age at recruitment was 18 years (IQR 12-28), 99 (52%) were female, mean blood pressure was 110/65 mm Hg (SDs 16 and 12), and 108 (56%) were taking β blockers. Mean baseline aortic root diameter was 34·4 mm in the irbesartan group (SD 5·8) and placebo group (5·5). The mean rate of aortic root dilatation was 0·53 mm per year (95% CI 0·39 to 0·67) in the irbesartan group compared with 0·74 mm per year (0·60 to 0·89) in the placebo group, with a difference in means of -0·22 mm per year (-0·41 to -0·02, p=0·030). The rate of change in aortic Z score was also reduced by irbesartan (difference in means -0·10 per year, 95% CI -0·19 to -0·01, p=0·035). Irbesartan was well tolerated with no observed differences in rates of serious adverse events.

Irbesartan is associated with a reduction in the rate of aortic dilatation in children and young adults with Marfan syndrome and could reduce the incidence of aortic complications.

British Heart Foundation, the UK Marfan Trust, the UK Marfan Association.

Copyright © 2019 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 license. Published by Elsevier Ltd.. All rights reserved.


Irbesartan in Marfan syndrome (AIMS): a double-blind, placebo-controlled randomised trial.


Mullen M, Jin XY, Child A, Stuart AG, Dodd M, Aragon-Martin JA, Gaze D, Kiotsekoglou A, Yuan L, Hu J, Foley C, Van Dyck L, Knight R, Clayton T, Swan L, Thomson JDR, Erdem G, Crossman D, Flather M; AIMS Investigators.

Publish date

2020 Dec 21




The objectives of this study were to evaluate the impact of formulation variables on the drying of nanocrystalline suspensions either via bead layering or spray granulation and develop mini-tablets from the dried nanocrystalline powders. Irbesartan (crystalline Form B), a poorly soluble drug substance was chosen as a model compound. An optimized irbesartan nanocrystalline suspension with a mean particle size of 300 nm was utilized for the downstream processing. Irbesartan nanocrystalline suspension was dried either by layering onto the microcrystalline cellulose beads (i.e. 200 or 500 µm) or by granulation (mannitol or microcrystalline cellulose as substrates) at two different drug loadings (i.e. 10% or 30% w/w). Smaller size beads layered with nanocrystals resulted in faster dissolution profiles compared to larger size beads at both the studied drug loadings (i.e. 10 and 30% w/w). Mannitol granules containing irbesartan nanocrystals resulted in faster dissolution profiles compared to microcrystalline cellulose granules. Microcrystalline cellulose beads and mannitol granules containing irbesartan nanocrystals (i.e. 30% w/w drug loading) were further compressed into mini-tablets. Mini-tablets retained fast drug dissolution characteristics of the dried powders. The results from this study indicated that the spray granulation is a superior drying approach compared to bead layering for drying of irbesartan nanocrystalline suspension and mini-tablet development.

Copyright © 2019 Elsevier B.V. All rights reserved.


Bead layering; Dissolution enhancement; Drying of nanocrystalline suspensions; Enabling technology; Formulation variables; Irbesartan (PubChem CID: 3749); Mini-tablets; Spray granulation


Downstream processing of irbesartan nanocrystalline suspension and mini-tablet development - Part II.


Meruva S, Thool P, Karki S, Bowen W, Ghosh I, Kumar S.

Publish date

2019 Sep 10;

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