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137277-84-0

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137277-84-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137277-84-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,2,7 and 7 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 137277-84:
(8*1)+(7*3)+(6*7)+(5*2)+(4*7)+(3*7)+(2*8)+(1*4)=150
150 % 10 = 0
So 137277-84-0 is a valid CAS Registry Number.

137277-84-0Downstream Products

137277-84-0Relevant articles and documents

Homologation of furfural and derivatives to furylacetaldehydes

Brochet,Syssa,Mouloungui,Delmas,Gaset

, p. 1735 - 1741 (1991)

The homologation of furfural 1a and methyl 3-(5-formyl-2-furyl) propenoate 1b or ethyl 3-(5-formyl-2-furyl) propenoate 1c to the corresponding furylacetaldehydes was carried out in two stages: i) preparation of the furan epoxides from 1a, 1b, 1c. ii) cleavage and rearrangement of the epoxides on sepiolite. Sepiolite is a convenient catalyst for this last stage involving substrates as labile as the furan epoxides.

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