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265980-87-8

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265980-87-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 265980-87-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,5,9,8 and 0 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 265980-87:
(8*2)+(7*6)+(6*5)+(5*9)+(4*8)+(3*0)+(2*8)+(1*7)=188
188 % 10 = 8
So 265980-87-8 is a valid CAS Registry Number.

265980-87-8Downstream Products

265980-87-8Relevant articles and documents

An efficient synthesis of N-hydroxy-N'-[4-3H]phenyloctanediamide ([4-3H]SAHA), a potent cytodifferentiating agent

Desai, Dhimant,Sidorov, Victor,Backer, Joseph,Amin, Shantu

, p. 229 - 236 (2007/10/03)

We have developed an efficient synthesis of N-hydroxy-N'-[4-3H]phenyloctanediamide ([4-3H]SAHA) from the monoester of suberanilic acid. The starting material, a monoester of suberoyl chloride, was condensed with 4-bromoaniline in the presence of a base to give the 4-bromoanilide of monoethyl suberate in 92% yield. On further treatment with methanolic hydroxylamine hydrochloride and sodium methoxide, this compound gave 4-bromosuberanilohydroxamic acid in 94% yield. Catalytic tritium exchange of bromine using Pd/C in a tritium gas atmosphere resulted in [4-3H]SAHA with a specific activity of 2.49 Ci/mmol. From the key intermediate, 4-bromoanilide of monoethyl suberate by a non-catalytic tritium exchange reaction, we have also prepared [4-3H]SAHA with high specific activity of 27.5 Ci/mmol.

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