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131674-98-1

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131674-98-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 131674-98-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,6,7 and 4 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 131674-98:
(8*1)+(7*3)+(6*1)+(5*6)+(4*7)+(3*4)+(2*9)+(1*8)=131
131 % 10 = 1
So 131674-98-1 is a valid CAS Registry Number.

131674-98-1Downstream Products

131674-98-1Relevant articles and documents

CHEMISTRY OF SYSTEMS OF THE ALLYLIC TYPE III. ACYLATION OF 3-BROMO-1-PROPYNE AND 2,3-DIHALOGENO-1-PROPENES

Ibragimov, I. I.,Mamedov, E. I.,Aliev, A. G.,Mekhtieva, T. S.,Mekhtieva, Sh. Z.,et al.

, p. 1431 - 1435 (2007/10/02)

The acylation of 3-bromo-1-propyne and 2,3-dihalogeno-1-propenes under the conditions of the Kondakov reaction gave trans-S-cis-alkyl (cycloalkyl, aryl) 2,3-dihalogeno-1-propenyl ketones.They are formed by electrophilic substitution of the proton at the α

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