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127983-58-8

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127983-58-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 127983-58-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,9,8 and 3 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 127983-58:
(8*1)+(7*2)+(6*7)+(5*9)+(4*8)+(3*3)+(2*5)+(1*8)=168
168 % 10 = 8
So 127983-58-8 is a valid CAS Registry Number.

127983-58-8Downstream Products

127983-58-8Relevant articles and documents

Ring Closure Reactions of Methyl N-(Haloacetyl)anthranilates with Ammonia

Cho, Nam Sook,Song, Ki Youn

, p. 1807 - 1810 (2007/10/02)

In the presence of ammonia, methyl N-(bromoacetyl)anthranilate (4) is cyclized into 3H-1,4-benzodiazepine-2,5(1H,4H)-dione (1).However, when 4 is replaced with methyl N-(chloroacetyl)anthranilate (6), the only heterocyclic product formed in the reaction is 2-(chloromethyl)quinazoline-4(3H)-one (7).Under analogous conditions, 3-haloacetamidocrotonates (9,10) do not yield any heterocyclic products and no 1,4-diazepines can be obtained.

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