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81887-87-8

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81887-87-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81887-87-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,8,8 and 7 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 81887-87:
(7*8)+(6*1)+(5*8)+(4*8)+(3*7)+(2*8)+(1*7)=178
178 % 10 = 8
So 81887-87-8 is a valid CAS Registry Number.

81887-87-8Downstream Products

81887-87-8Relevant articles and documents

PYRROLES FROM KETOXIMES AND ACETYLENE. XXXIII. ADDITION OF ACETYLENIC ALCOHOLS TO 1-VINYLPYRROLES

Korostova, S. E.,Mikhaleva, A. I.,Shevchenko, S. G.,Shcherbakov, V. V.,Nesterenko, R. N.,et al.

, p. 2235 - 2241 (2007/10/02)

The addition of acetylenic alcohols to 1-vinylpyrroles under electrophilic conditions leads to the formation of 1-pyrroles.The yields of the adducts depend on the reaction conditions, the structure of the 1-vinylpyrroles, and the acetylenic alcohols.

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