Ester

Ester
CN name	酯原料
Type	Upgrade material

Ester is an upgrade material in Arknights.

Description

Ester used in industrial production. Can be used for a variety of upgrades and for production in the Factory.

One of the most important materials in modern industry. Its appearance has lead to the development of many modern products. This one, of course, is only a raw material that has practical application.

Usage

The first of the Ester-type upgrade materials, these organic substances have many uses, one of which includes Operator basic skill upgrades.

Acquisition

Store

• Two Esters are sometimes available at the Credit Store for the base price of 120 .
• Eight Esters are available at the Headhunting Parametric Model Store for 25 .

Regular drops

Operation	Sanity	Drop rate	Sanity per drop
0-11	6	Guaranteed  (~111%)	~5
S2-7	12	Guaranteed  (~251%)	~4
GT-1	9	Guaranteed
AF-1	6	Guaranteed
TW-2	9	Guaranteed
DM-2	9	Guaranteed
RI-2	9	Common
MN-3	12	Guaranteed
MB-2	9	Guaranteed
WR-2	9	Guaranteed
OD-1	12	Uncommon
OD-2	12	Uncommon
WD-1	12	Uncommon
WD-2	12	Uncommon
SV-1	12	Uncommon
SV-2	12	Uncommon

As seen on the table above, the best operation to farm Ester is S2-7.

Extra drops

0-1 0-2 0-3 0-4 0-5 0-6 0-7 0-8 0-9 0-10 0-11 1-1 1-3 1-4 1-5 1-6 1-7 1-8 1-9 1-10 1-12 2-1 2-2 2-3 2-4 2-6 2-9 3-2 3-3 3-4 3-5 3-8 4-5 4-8 4-9 5-4 5-8 6-2 6-4 6-10 6-15 7-2 7-5 7-9 7-10 7-14 R8-3 R8-9 R8-10 JT8-2 9-2 9-6 9-7 9-11 9-12 9-15 9-19 S2-1 S2-2 S2-3 S2-4 S2-5 S2-7 S2-10 S2-12 S3-2 S3-4 S4-2 S4-5 S4-8 S5-7 S6-1 S6-4 SW-EV-1 SW-EV-2 SW-EV-4 AF-1 AF-2 AF-3 AF-4 SA-1 SA-2 SA-3 SV-1 SV-2 SV-3 SV-4 FA-1 FA-2 FA-3 FA-4 FA-5 FA-6 BH-1 BH-2 BH-3 BH-4 BH-5 BH-6 PL-1 PL-2 PL-3 VI-1 VI-2 VI-3 VI-4 VI-5 PS-1 PS-2 PS-3 PS-4

Trivia

• In our world, ester is a high-quality solvent typically used in the production of plastics and resins, as well as synthetic lubricants.

See also

• Polyester – T2 counterpart
• Polyester Pack – T3 counterpart
• Polyester Lump – T4 counterpart