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1388851-19-1

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1388851-19-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1388851-19-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,8,8,8,5 and 1 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1388851-19:
(9*1)+(8*3)+(7*8)+(6*8)+(5*8)+(4*5)+(3*1)+(2*1)+(1*9)=211
211 % 10 = 1
So 1388851-19-1 is a valid CAS Registry Number.

1388851-19-1Downstream Products

1388851-19-1Relevant articles and documents

Reaction of 5-azacytosine with 3-methyl-1-phenyl-5-pyrazolone

Azev,Teplyashina,Golomolzin

, p. 1114 - 1115 (1997)

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New Synthetic Potential of Pteridine Derivatives: Direct Substitution of H in 1,3-Dimethyllumazine During Reaction with C-Nucleophiles

Azev, Yu. A.,Ermakova,Gibor,Ezhikova,Kodess,Chupakhin

, p. 373 - 375 (2016)

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Interaction of fervenulin-4-oxide with 1-phenyl-3-methylpyrazol-5-one in the absence of bases

Azev,Teplyashina

, p. 97 - 98 (1998)

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Investigation of tetrazine reactivity towards C-nucleophiles: Pyrazolone-based modification of biomolecules

Renault, Kévin,Guillou, Clément,Renard, Pierre-Yves,Sabot, Cyrille

, p. 388 - 396 (2019)

Chemoselective, biocompatible ligation reactions are the key components for efficient and modular access to biomolecular scaffolds. Tetrazine ligation leads to the formation of a mixture of isomers, which makes reaction monitoring, purification and characterization of conjugates difficult. We report herein a modified tetrazine ligation strategy based on the use of a pyrazolone coupling partner, which provides a single molecule conjugate.

Reaction of 2-chloro-1-alkyl-1H-indole-3-carbaldehydes with barbituric acids and 5-methyl-2-phenyl-2,4-dihydropyrazol-3-one. Formation of compound with extremely short intramolecular hydrogen bond in eight-membered pseudocycle

Suzdalev, Konstantin F.,Babakova, Maria N.,Kartsev, Victor G.,Krasnov, Konstantin A.

, p. 64 - 75 (2015/05/12)

New indolin-2-one derivatives, containing in its molecules eight-membered pseudo-cycle with unusually short intramolecular hydrogen bond in OHO-bridge have been synthesized by reaction of 2-chloro-1-alkyl-1H-indole-3-carbaldehyde with barbituric acids or 5-methyl-2-phenyl-2,4-dihydropyrazol-3-one. Under the action of amines they undergo fragmentation to 5-aminomethylenebarbituric acids or 4-aminomethylenepyrazolones and 1-alkyl-1,3-dihydroindol-2-ones.

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