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129958-40-3

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129958-40-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129958-40-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,9,5 and 8 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 129958-40:
(8*1)+(7*2)+(6*9)+(5*9)+(4*5)+(3*8)+(2*4)+(1*0)=173
173 % 10 = 3
So 129958-40-3 is a valid CAS Registry Number.

129958-40-3Downstream Products

129958-40-3Relevant articles and documents

REACTION OF ORGANIC AZIDES WITH UNSATURATED COMPOUNDS XI. REARRANGEMENTS OF BICYCLIC TRIAZOLINES, OBTAINED FROM TAUTOMERIC 2,4,4-TRIMETHYL-AND 3,3,5-TRIMETHYL-1-METHOXYCYCLOPENTENES AND 4-METHYL-3-NITROBENZENESULFONYL AZIDE

Semenov, V. P.,Ogloblin, K. A.

, p. 711 - 715 (2007/10/02)

The reaction of 4-methyl-3-nitrobenzenesulfonyl azide with the tautomeric 2,4,4-trimethyl- and 3,3,5-trimethyl-1-methoxycyclopentenes leads to the formation of the products from transformation of both triazolines in almost equal ratios.The less substituted triazoline is converted through the corresponding aziridine into the allylsulfonamide, while the more substituted triazoline rearranges preferentially to methyl N-arylsulfonyl-1,3,3-trimethylcyclobutanecarboximidate.

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