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2-amino-4-(3-bromophenyl)-7-methyl-5-oxo-4H,5H-pyrano[4,3-b]pyran-3-carbonitrile is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

331950-32-4

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331950-32-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 331950-32-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,1,9,5 and 0 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 331950-32:
(8*3)+(7*3)+(6*1)+(5*9)+(4*5)+(3*0)+(2*3)+(1*2)=124
124 % 10 = 4
So 331950-32-4 is a valid CAS Registry Number.

331950-32-4Downstream Products

331950-32-4Relevant articles and documents

Tertiary amine-bisquaternary ammonium functionalized polyacrylonitrile fiber for catalytic synthesis of pyran-annulated heterocycles

Anyaegbu, Chima E.,Ma, Ning,Tao, Minli,Xiao, Jian,Zhang, Haonan,Zhang, Wenqin

, (2022/02/14)

Polyacrylonitrile fiber supported bisquaternary ammonium salts with varying interchain quaternary ammonium (QA) to tertiary amine (TA) ratio, counter ions and linker groups were prepared and characterized by TGA, FTIR, XPS, XRD, SEM, EA and water contact

1H-imidazol-3-ium tricyanomethanide {[HIM]C(CN)3} as a nanostructured molten salt catalyst: application to the synthesis of pyrano[4,3‐b]pyrans

Zolfigol, Mohammad Ali,Yarie, Meysam,Baghery, Saeed,Khoshnood, Abbas,Alonso, Diego A.

, p. 3291 - 3305 (2017/04/21)

In this work, we have synthesized a novel nanostructured molten salt, 1H-imidazol-3-ium tricyanomethanide {[HIMI]C(CN)3} (1), as an efficient and green protocol-compatible catalyst. This new molten salt has been fully characterized b

4-(Succinimido)-1-butane sulfonic acid as a Br?nsted acid catalyst for the synthesis of pyrano[4,3-b]pyran derivatives using thermal and ultrasonic irradiation

Khaligh, Nader Ghaffari,Hamid, Sharifah Bee Abd

, p. 728 - 733 (2015/09/28)

4-(Succinimido)-1-butane sulfonic acid was shown to be an efficient and reusable Br?nsted acid catalyst for the synthesis of pyrano[4,3-b]pyran derivatives using thermal and ultrasonic conditions. The catalyst was prepared by mixing succinimide and 1,4-bu

4-(Succinimido)-1-butane sulfonic acid as a br?nsted acid catalyst for synthesis of pyrano[4,3-b]pyran derivatives under solvent-free conditions

Khaligh, Nader Ghaffari

, p. 26 - 30 (2015/01/30)

4-(Succinimido)-1-butane sulfonic acid as an efficient and reusable Br?nsted acid catalyzed the synthesis of pyrano[4,3-b]pyran derivatives under solvent-free conditions. The catalyst can be prepared by mixing succinimide and 1,4-butanesultone that is mor

Nickel nanoparticles as semiheterogeneous catalyst for one-pot, three-component synthesis of 2-amino-4H-pyrans and pyran annulated heterocyclic moieties

Khurana, Jitender M.,Vij, Kanika

, p. 2294 - 2304 (2013/07/26)

An efficient route for the synthesis of 2-amino-4H-pyrans and pyran annulated heterocyclic moieties has been reported via one-pot tandem Knoevenagel-cyclocondensation of aldehydes, malononitrile, and carbocyclic/heterocyclic 1,3-diones in the presence of

Pyrano [3,2-C] Pyridones and Related Heterocyclic Compounds as Pharmaceutical Agents for Treating Disorders Responsive to Apoptosis, Antiproliferation or Vascular Disruption, and the Use Thereof

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Page/Page column 2, (2009/10/06)

A pharmaceutical composition comprising a pharmaceutically acceptable excipient or carrier and a compound Formula I: or a pharmaceutically acceptable salt or prodrug thereof.

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